diff --git a/src/ast/bool_literal.cc b/src/ast/bool_literal.cc
index 4c6af63923..c21d87fde8 100644
--- a/src/ast/bool_literal.cc
+++ b/src/ast/bool_literal.cc
@@ -22,8 +22,8 @@ TINT_INSTANTIATE_CLASS_ID(tint::ast::BoolLiteral);
 namespace tint {
 namespace ast {
 
-BoolLiteral::BoolLiteral(type::Type* type, bool value)
-    : Base(type), value_(value) {}
+BoolLiteral::BoolLiteral(const Source& source, type::Type* type, bool value)
+    : Base(source, type), value_(value) {}
 
 BoolLiteral::~BoolLiteral() = default;
 
@@ -36,7 +36,8 @@ std::string BoolLiteral::name() const {
 }
 
 BoolLiteral* BoolLiteral::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<BoolLiteral>(ctx->Clone(type()), value_);
+  return ctx->mod->create<BoolLiteral>(ctx->Clone(source()), ctx->Clone(type()),
+                                       value_);
 }
 
 }  // namespace ast
diff --git a/src/ast/bool_literal.h b/src/ast/bool_literal.h
index c95ca827fb..1b984f5f2d 100644
--- a/src/ast/bool_literal.h
+++ b/src/ast/bool_literal.h
@@ -26,9 +26,10 @@ namespace ast {
 class BoolLiteral : public Castable<BoolLiteral, Literal> {
  public:
   /// Constructor
+  /// @param source the input source
   /// @param type the type of the literal
   /// @param value the bool literals value
-  BoolLiteral(type::Type* type, bool value);
+  BoolLiteral(const Source& source, type::Type* type, bool value);
   ~BoolLiteral() override;
 
   /// @returns true if the bool literal is true
diff --git a/src/ast/bool_literal_test.cc b/src/ast/bool_literal_test.cc
index 186d71e7a2..d98f98891d 100644
--- a/src/ast/bool_literal_test.cc
+++ b/src/ast/bool_literal_test.cc
@@ -29,7 +29,7 @@ using BoolLiteralTest = TestHelper;
 
 TEST_F(BoolLiteralTest, True) {
   type::Bool bool_type;
-  BoolLiteral b{&bool_type, true};
+  BoolLiteral b{Source{}, &bool_type, true};
   ASSERT_TRUE(b.Is<BoolLiteral>());
   ASSERT_TRUE(b.IsTrue());
   ASSERT_FALSE(b.IsFalse());
@@ -37,7 +37,7 @@ TEST_F(BoolLiteralTest, True) {
 
 TEST_F(BoolLiteralTest, False) {
   type::Bool bool_type;
-  BoolLiteral b{&bool_type, false};
+  BoolLiteral b{Source{}, &bool_type, false};
   ASSERT_TRUE(b.Is<BoolLiteral>());
   ASSERT_FALSE(b.IsTrue());
   ASSERT_TRUE(b.IsFalse());
@@ -45,7 +45,7 @@ TEST_F(BoolLiteralTest, False) {
 
 TEST_F(BoolLiteralTest, Is) {
   type::Bool bool_type;
-  BoolLiteral b{&bool_type, false};
+  BoolLiteral b{Source{}, &bool_type, false};
   Literal* l = &b;
   EXPECT_TRUE(l->Is<BoolLiteral>());
   EXPECT_FALSE(l->Is<SintLiteral>());
@@ -57,8 +57,8 @@ TEST_F(BoolLiteralTest, Is) {
 
 TEST_F(BoolLiteralTest, ToStr) {
   type::Bool bool_type;
-  BoolLiteral t{&bool_type, true};
-  BoolLiteral f{&bool_type, false};
+  BoolLiteral t{Source{}, &bool_type, true};
+  BoolLiteral f{Source{}, &bool_type, false};
 
   EXPECT_EQ(t.to_str(), "true");
   EXPECT_EQ(f.to_str(), "false");
diff --git a/src/ast/builder.h b/src/ast/builder.h
index 189ebdb91d..63e625c205 100644
--- a/src/ast/builder.h
+++ b/src/ast/builder.h
@@ -275,19 +275,27 @@ class Builder {
 
   /// @param val the boolan value
   /// @return a boolean literal with the given value
-  BoolLiteral* Literal(bool val) { return create<BoolLiteral>(ty.bool_, val); }
+  BoolLiteral* Literal(bool val) {
+    return create<BoolLiteral>(Source{}, ty.bool_, val);
+  }
 
   /// @param val the float value
   /// @return a float literal with the given value
-  FloatLiteral* Literal(f32 val) { return create<FloatLiteral>(ty.f32, val); }
+  FloatLiteral* Literal(f32 val) {
+    return create<FloatLiteral>(Source{}, ty.f32, val);
+  }
 
   /// @param val the unsigned int value
   /// @return a UintLiteral with the given value
-  UintLiteral* Literal(u32 val) { return create<UintLiteral>(ty.u32, val); }
+  UintLiteral* Literal(u32 val) {
+    return create<UintLiteral>(Source{}, ty.u32, val);
+  }
 
   /// @param val the integer value
   /// @return the SintLiteral with the given value
-  SintLiteral* Literal(i32 val) { return create<SintLiteral>(ty.i32, val); }
+  SintLiteral* Literal(i32 val) {
+    return create<SintLiteral>(Source{}, ty.i32, val);
+  }
 
   /// @param args the arguments for the type constructor
   /// @return an `TypeConstructorExpression` of type `ty`, with the values
diff --git a/src/ast/case_statement_test.cc b/src/ast/case_statement_test.cc
index 37617a8083..9ecf1bbae5 100644
--- a/src/ast/case_statement_test.cc
+++ b/src/ast/case_statement_test.cc
@@ -32,7 +32,7 @@ TEST_F(CaseStatementTest, Creation_i32) {
   type::I32 i32;
 
   CaseSelectorList b;
-  auto* selector = create<SintLiteral>(&i32, 2);
+  auto* selector = create<SintLiteral>(Source{}, &i32, 2);
   b.push_back(selector);
 
   auto* body = create<BlockStatement>();
@@ -50,7 +50,7 @@ TEST_F(CaseStatementTest, Creation_u32) {
   type::U32 u32;
 
   CaseSelectorList b;
-  auto* selector = create<SintLiteral>(&u32, 2);
+  auto* selector = create<SintLiteral>(Source{}, &u32, 2);
   b.push_back(selector);
 
   auto* body = create<BlockStatement>();
@@ -67,7 +67,7 @@ TEST_F(CaseStatementTest, Creation_u32) {
 TEST_F(CaseStatementTest, Creation_WithSource) {
   type::I32 i32;
   CaseSelectorList b;
-  b.push_back(create<SintLiteral>(&i32, 2));
+  b.push_back(create<SintLiteral>(Source{}, &i32, 2));
 
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
@@ -89,7 +89,7 @@ TEST_F(CaseStatementTest, IsDefault_WithoutSelectors) {
 TEST_F(CaseStatementTest, IsDefault_WithSelectors) {
   type::I32 i32;
   CaseSelectorList b;
-  b.push_back(create<SintLiteral>(&i32, 2));
+  b.push_back(create<SintLiteral>(Source{}, &i32, 2));
 
   CaseStatement c(b, create<BlockStatement>());
   EXPECT_FALSE(c.IsDefault());
@@ -108,7 +108,7 @@ TEST_F(CaseStatementTest, IsValid) {
 TEST_F(CaseStatementTest, IsValid_NullBodyStatement) {
   type::I32 i32;
   CaseSelectorList b;
-  b.push_back(create<SintLiteral>(&i32, 2));
+  b.push_back(create<SintLiteral>(Source{}, &i32, 2));
 
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
@@ -121,7 +121,7 @@ TEST_F(CaseStatementTest, IsValid_NullBodyStatement) {
 TEST_F(CaseStatementTest, IsValid_InvalidBodyStatement) {
   type::I32 i32;
   CaseSelectorList b;
-  b.push_back(create<SintLiteral>(&i32, 2));
+  b.push_back(create<SintLiteral>(Source{}, &i32, 2));
 
   auto* body = create<BlockStatement>();
   body->append(create<IfStatement>(Source{}, nullptr, create<BlockStatement>(),
@@ -134,7 +134,7 @@ TEST_F(CaseStatementTest, IsValid_InvalidBodyStatement) {
 TEST_F(CaseStatementTest, ToStr_WithSelectors_i32) {
   type::I32 i32;
   CaseSelectorList b;
-  b.push_back(create<SintLiteral>(&i32, -2));
+  b.push_back(create<SintLiteral>(Source{}, &i32, -2));
 
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
@@ -151,7 +151,7 @@ TEST_F(CaseStatementTest, ToStr_WithSelectors_i32) {
 TEST_F(CaseStatementTest, ToStr_WithSelectors_u32) {
   type::U32 u32;
   CaseSelectorList b;
-  b.push_back(create<UintLiteral>(&u32, 2));
+  b.push_back(create<UintLiteral>(Source{}, &u32, 2));
 
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
@@ -169,8 +169,8 @@ TEST_F(CaseStatementTest, ToStr_WithMultipleSelectors) {
   type::I32 i32;
 
   CaseSelectorList b;
-  b.push_back(create<SintLiteral>(&i32, 1));
-  b.push_back(create<SintLiteral>(&i32, 2));
+  b.push_back(create<SintLiteral>(Source{}, &i32, 1));
+  b.push_back(create<SintLiteral>(Source{}, &i32, 2));
 
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
diff --git a/src/ast/clone_context.h b/src/ast/clone_context.h
index 7733b850be..9bfb906c9b 100644
--- a/src/ast/clone_context.h
+++ b/src/ast/clone_context.h
@@ -109,7 +109,8 @@ class CloneContext {
   ///   // Replace all ast::UintLiterals with the number 42
   ///   CloneCtx ctx(mod);
   ///   ctx.ReplaceAll([&] (ast::UintLiteral* in) {
-  ///     return ctx.mod->create<ast::UintLiteral>(ctx.Clone(in->type()), 42);
+  ///     return ctx.mod->create<ast::UintLiteral>(ctx.Clone(in->source()),
+  ///                                              ctx.Clone(in->type()), 42);
   ///   });
   ///   auto* out = ctx.Clone(tree);
   /// ```
diff --git a/src/ast/else_statement_test.cc b/src/ast/else_statement_test.cc
index 98dfd71446..58a75af911 100644
--- a/src/ast/else_statement_test.cc
+++ b/src/ast/else_statement_test.cc
@@ -30,7 +30,7 @@ using ElseStatementTest = TestHelper;
 TEST_F(ElseStatementTest, Creation) {
   type::Bool bool_type;
   auto* cond = create<ScalarConstructorExpression>(
-      create<BoolLiteral>(&bool_type, true));
+      create<BoolLiteral>(Source{}, &bool_type, true));
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
 
@@ -57,7 +57,7 @@ TEST_F(ElseStatementTest, IsElse) {
 TEST_F(ElseStatementTest, HasCondition) {
   type::Bool bool_type;
   auto* cond = create<ScalarConstructorExpression>(
-      create<BoolLiteral>(&bool_type, true));
+      create<BoolLiteral>(Source{}, &bool_type, true));
   ElseStatement e(cond, create<BlockStatement>());
   EXPECT_TRUE(e.HasCondition());
 }
@@ -107,7 +107,7 @@ TEST_F(ElseStatementTest, IsValid_InvalidBodyStatement) {
 TEST_F(ElseStatementTest, ToStr) {
   type::Bool bool_type;
   auto* cond = create<ScalarConstructorExpression>(
-      create<BoolLiteral>(&bool_type, true));
+      create<BoolLiteral>(Source{}, &bool_type, true));
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
 
diff --git a/src/ast/float_literal.cc b/src/ast/float_literal.cc
index d6f30c7841..5ce4347ca5 100644
--- a/src/ast/float_literal.cc
+++ b/src/ast/float_literal.cc
@@ -25,8 +25,8 @@ TINT_INSTANTIATE_CLASS_ID(tint::ast::FloatLiteral);
 namespace tint {
 namespace ast {
 
-FloatLiteral::FloatLiteral(type::Type* type, float value)
-    : Base(type), value_(value) {}
+FloatLiteral::FloatLiteral(const Source& source, type::Type* type, float value)
+    : Base(source, type), value_(value) {}
 
 FloatLiteral::~FloatLiteral() = default;
 
@@ -43,7 +43,8 @@ std::string FloatLiteral::name() const {
 }
 
 FloatLiteral* FloatLiteral::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<FloatLiteral>(ctx->Clone(type()), value_);
+  return ctx->mod->create<FloatLiteral>(ctx->Clone(source()),
+                                        ctx->Clone(type()), value_);
 }
 
 }  // namespace ast
diff --git a/src/ast/float_literal.h b/src/ast/float_literal.h
index 9e55e47e53..ad33124932 100644
--- a/src/ast/float_literal.h
+++ b/src/ast/float_literal.h
@@ -26,9 +26,10 @@ namespace ast {
 class FloatLiteral : public Castable<FloatLiteral, Literal> {
  public:
   /// Constructor
+  /// @param source the input source
   /// @param type the type of the literal
   /// @param value the float literals value
-  FloatLiteral(type::Type* type, float value);
+  FloatLiteral(const Source& source, type::Type* type, float value);
   ~FloatLiteral() override;
 
   /// @returns the float literal value
diff --git a/src/ast/float_literal_test.cc b/src/ast/float_literal_test.cc
index 77b03f6cbf..2b4394e38a 100644
--- a/src/ast/float_literal_test.cc
+++ b/src/ast/float_literal_test.cc
@@ -29,14 +29,14 @@ using FloatLiteralTest = TestHelper;
 
 TEST_F(FloatLiteralTest, Value) {
   type::F32 f32;
-  FloatLiteral f{&f32, 47.2f};
+  FloatLiteral f{Source{}, &f32, 47.2f};
   ASSERT_TRUE(f.Is<FloatLiteral>());
   EXPECT_EQ(f.value(), 47.2f);
 }
 
 TEST_F(FloatLiteralTest, Is) {
   type::F32 f32;
-  FloatLiteral f{&f32, 42.f};
+  FloatLiteral f{Source{}, &f32, 42.f};
   Literal* l = &f;
   EXPECT_FALSE(l->Is<BoolLiteral>());
   EXPECT_FALSE(l->Is<SintLiteral>());
@@ -48,14 +48,14 @@ TEST_F(FloatLiteralTest, Is) {
 
 TEST_F(FloatLiteralTest, ToStr) {
   type::F32 f32;
-  FloatLiteral f{&f32, 42.1f};
+  FloatLiteral f{Source{}, &f32, 42.1f};
 
   EXPECT_EQ(f.to_str(), "42.099998");
 }
 
 TEST_F(FloatLiteralTest, ToName) {
   type::F32 f32;
-  FloatLiteral f{&f32, 42.1f};
+  FloatLiteral f{Source{}, &f32, 42.1f};
   EXPECT_EQ(f.name(), "__float42.0999985");
 }
 
diff --git a/src/ast/int_literal.cc b/src/ast/int_literal.cc
index aa35f3cdc3..e48801e7b3 100644
--- a/src/ast/int_literal.cc
+++ b/src/ast/int_literal.cc
@@ -19,7 +19,8 @@ TINT_INSTANTIATE_CLASS_ID(tint::ast::IntLiteral);
 namespace tint {
 namespace ast {
 
-IntLiteral::IntLiteral(type::Type* type) : Base(type) {}
+IntLiteral::IntLiteral(const Source& source, type::Type* type)
+    : Base(source, type) {}
 
 IntLiteral::~IntLiteral() = default;
 
diff --git a/src/ast/int_literal.h b/src/ast/int_literal.h
index 49ecda47b1..f522c1eb6a 100644
--- a/src/ast/int_literal.h
+++ b/src/ast/int_literal.h
@@ -27,8 +27,9 @@ class IntLiteral : public Castable<IntLiteral, Literal> {
 
  protected:
   /// Constructor
+  /// @param source the input source
   /// @param type the type of the literal
-  explicit IntLiteral(type::Type* type);
+  IntLiteral(const Source& source, type::Type* type);
 };
 
 }  // namespace ast
diff --git a/src/ast/int_literal_test.cc b/src/ast/int_literal_test.cc
index 3a1eb7599c..edf744042d 100644
--- a/src/ast/int_literal_test.cc
+++ b/src/ast/int_literal_test.cc
@@ -31,13 +31,13 @@ using IntLiteralTest = TestHelper;
 
 TEST_F(IntLiteralTest, Sint_IsInt) {
   type::I32 i32;
-  SintLiteral i{&i32, 47};
+  SintLiteral i{Source{}, &i32, 47};
   ASSERT_TRUE(i.Is<IntLiteral>());
 }
 
 TEST_F(IntLiteralTest, Uint_IsInt) {
   type::I32 i32;
-  UintLiteral i{&i32, 42};
+  UintLiteral i{Source{}, &i32, 42};
   EXPECT_TRUE(i.Is<IntLiteral>());
 }
 
diff --git a/src/ast/literal.cc b/src/ast/literal.cc
index 77a7612573..05375ad2d3 100644
--- a/src/ast/literal.cc
+++ b/src/ast/literal.cc
@@ -19,7 +19,8 @@ TINT_INSTANTIATE_CLASS_ID(tint::ast::Literal);
 namespace tint {
 namespace ast {
 
-Literal::Literal(type::Type* type) : type_(type) {}
+Literal::Literal(const Source& source, type::Type* type)
+    : Base(source), type_(type) {}
 
 Literal::~Literal() = default;
 
diff --git a/src/ast/literal.h b/src/ast/literal.h
index 947ed38e96..dea8a63563 100644
--- a/src/ast/literal.h
+++ b/src/ast/literal.h
@@ -47,8 +47,9 @@ class Literal : public Castable<Literal, Node> {
 
  protected:
   /// Constructor
+  /// @param source the input source
   /// @param type the type of the literal
-  explicit Literal(type::Type* type);
+  explicit Literal(const Source& source, type::Type* type);
 
  private:
   type::Type* type_ = nullptr;
diff --git a/src/ast/node.h b/src/ast/node.h
index f72c41aebe..42301d5119 100644
--- a/src/ast/node.h
+++ b/src/ast/node.h
@@ -64,7 +64,7 @@ class Node : public Castable<Node> {
   /// Create a new node
   Node();
   /// Create a new node
-  /// @param source The input source for the node
+  /// @param source the input source for the node
   explicit Node(const Source& source);
   /// Move constructor
   Node(Node&&);
diff --git a/src/ast/null_literal.cc b/src/ast/null_literal.cc
index 4ae8324c78..9b654a3000 100644
--- a/src/ast/null_literal.cc
+++ b/src/ast/null_literal.cc
@@ -22,7 +22,8 @@ TINT_INSTANTIATE_CLASS_ID(tint::ast::NullLiteral);
 namespace tint {
 namespace ast {
 
-NullLiteral::NullLiteral(type::Type* type) : Base(type) {}
+NullLiteral::NullLiteral(const Source& source, type::Type* type)
+    : Base(source, type) {}
 
 NullLiteral::~NullLiteral() = default;
 
@@ -35,7 +36,8 @@ std::string NullLiteral::name() const {
 }
 
 NullLiteral* NullLiteral::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<NullLiteral>(ctx->Clone(type()));
+  return ctx->mod->create<NullLiteral>(ctx->Clone(source()),
+                                       ctx->Clone(type()));
 }
 
 }  // namespace ast
diff --git a/src/ast/null_literal.h b/src/ast/null_literal.h
index 8ae3ff03de..31ada3bfaa 100644
--- a/src/ast/null_literal.h
+++ b/src/ast/null_literal.h
@@ -26,8 +26,9 @@ namespace ast {
 class NullLiteral : public Castable<NullLiteral, Literal> {
  public:
   /// Constructor
+  /// @param source the input source
   /// @param type the type
-  explicit NullLiteral(type::Type* type);
+  NullLiteral(const Source& source, type::Type* type);
   ~NullLiteral() override;
 
   /// @returns the name for this literal. This name is unique to this value.
diff --git a/src/ast/null_literal_test.cc b/src/ast/null_literal_test.cc
index 1ae8c83177..1d2afa01f8 100644
--- a/src/ast/null_literal_test.cc
+++ b/src/ast/null_literal_test.cc
@@ -29,7 +29,7 @@ using NullLiteralTest = TestHelper;
 
 TEST_F(NullLiteralTest, Is) {
   type::I32 i32;
-  NullLiteral i{&i32};
+  NullLiteral i{Source{}, &i32};
   Literal* l = &i;
   EXPECT_FALSE(l->Is<BoolLiteral>());
   EXPECT_FALSE(l->Is<SintLiteral>());
@@ -41,14 +41,14 @@ TEST_F(NullLiteralTest, Is) {
 
 TEST_F(NullLiteralTest, ToStr) {
   type::I32 i32;
-  NullLiteral i{&i32};
+  NullLiteral i{Source{}, &i32};
 
   EXPECT_EQ(i.to_str(), "null __i32");
 }
 
 TEST_F(NullLiteralTest, Name_I32) {
   type::I32 i32;
-  NullLiteral i{&i32};
+  NullLiteral i{Source{}, &i32};
   EXPECT_EQ("__null__i32", i.name());
 }
 
diff --git a/src/ast/scalar_constructor_expression_test.cc b/src/ast/scalar_constructor_expression_test.cc
index 01683564db..cdb62f4d7b 100644
--- a/src/ast/scalar_constructor_expression_test.cc
+++ b/src/ast/scalar_constructor_expression_test.cc
@@ -26,14 +26,14 @@ using ScalarConstructorExpressionTest = TestHelper;
 
 TEST_F(ScalarConstructorExpressionTest, Creation) {
   type::Bool bool_type;
-  auto* b = create<BoolLiteral>(&bool_type, true);
+  auto* b = create<BoolLiteral>(Source{}, &bool_type, true);
   ScalarConstructorExpression c(b);
   EXPECT_EQ(c.literal(), b);
 }
 
 TEST_F(ScalarConstructorExpressionTest, Creation_WithSource) {
   type::Bool bool_type;
-  auto* b = create<BoolLiteral>(&bool_type, true);
+  auto* b = create<BoolLiteral>(Source{}, &bool_type, true);
   ScalarConstructorExpression c(Source{Source::Location{20, 2}}, b);
   auto src = c.source();
   EXPECT_EQ(src.range.begin.line, 20u);
@@ -42,7 +42,7 @@ TEST_F(ScalarConstructorExpressionTest, Creation_WithSource) {
 
 TEST_F(ScalarConstructorExpressionTest, IsValid) {
   type::Bool bool_type;
-  auto* b = create<BoolLiteral>(&bool_type, true);
+  auto* b = create<BoolLiteral>(Source{}, &bool_type, true);
   ScalarConstructorExpression c(b);
   EXPECT_TRUE(c.IsValid());
 }
@@ -54,7 +54,7 @@ TEST_F(ScalarConstructorExpressionTest, IsValid_MissingLiteral) {
 
 TEST_F(ScalarConstructorExpressionTest, ToStr) {
   type::Bool bool_type;
-  auto* b = create<BoolLiteral>(&bool_type, true);
+  auto* b = create<BoolLiteral>(Source{}, &bool_type, true);
   ScalarConstructorExpression c(b);
   std::ostringstream out;
   c.to_str(out, 2);
diff --git a/src/ast/sint_literal.cc b/src/ast/sint_literal.cc
index 0b3b4b3924..52b8b0eed8 100644
--- a/src/ast/sint_literal.cc
+++ b/src/ast/sint_literal.cc
@@ -22,8 +22,8 @@ TINT_INSTANTIATE_CLASS_ID(tint::ast::SintLiteral);
 namespace tint {
 namespace ast {
 
-SintLiteral::SintLiteral(type::Type* type, int32_t value)
-    : Base(type), value_(value) {}
+SintLiteral::SintLiteral(const Source& source, type::Type* type, int32_t value)
+    : Base(source, type), value_(value) {}
 
 SintLiteral::~SintLiteral() = default;
 
@@ -36,7 +36,8 @@ std::string SintLiteral::name() const {
 }
 
 SintLiteral* SintLiteral::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<SintLiteral>(ctx->Clone(type()), value_);
+  return ctx->mod->create<SintLiteral>(ctx->Clone(source()), ctx->Clone(type()),
+                                       value_);
 }
 
 }  // namespace ast
diff --git a/src/ast/sint_literal.h b/src/ast/sint_literal.h
index 9cba513665..cf4ac57730 100644
--- a/src/ast/sint_literal.h
+++ b/src/ast/sint_literal.h
@@ -26,9 +26,10 @@ namespace ast {
 class SintLiteral : public Castable<SintLiteral, IntLiteral> {
  public:
   /// Constructor
+  /// @param source the input source
   /// @param type the type
   /// @param value the signed int literals value
-  SintLiteral(type::Type* type, int32_t value);
+  SintLiteral(const Source& source, type::Type* type, int32_t value);
   ~SintLiteral() override;
 
   /// @returns the int literal value
diff --git a/src/ast/sint_literal_test.cc b/src/ast/sint_literal_test.cc
index 09b4a34b2b..f4fcc08ebb 100644
--- a/src/ast/sint_literal_test.cc
+++ b/src/ast/sint_literal_test.cc
@@ -30,14 +30,14 @@ using SintLiteralTest = TestHelper;
 
 TEST_F(SintLiteralTest, Value) {
   type::I32 i32;
-  SintLiteral i{&i32, 47};
+  SintLiteral i{Source{}, &i32, 47};
   ASSERT_TRUE(i.Is<SintLiteral>());
   EXPECT_EQ(i.value(), 47);
 }
 
 TEST_F(SintLiteralTest, Is) {
   type::I32 i32;
-  SintLiteral i{&i32, 42};
+  SintLiteral i{Source{}, &i32, 42};
   Literal* l = &i;
   EXPECT_FALSE(l->Is<BoolLiteral>());
   EXPECT_TRUE(l->Is<SintLiteral>());
@@ -48,20 +48,20 @@ TEST_F(SintLiteralTest, Is) {
 
 TEST_F(SintLiteralTest, ToStr) {
   type::I32 i32;
-  SintLiteral i{&i32, -42};
+  SintLiteral i{Source{}, &i32, -42};
 
   EXPECT_EQ(i.to_str(), "-42");
 }
 
 TEST_F(SintLiteralTest, Name_I32) {
   type::I32 i32;
-  SintLiteral i{&i32, 2};
+  SintLiteral i{Source{}, &i32, 2};
   EXPECT_EQ("__sint__i32_2", i.name());
 }
 
 TEST_F(SintLiteralTest, Name_U32) {
   type::U32 u32;
-  SintLiteral i{&u32, 2};
+  SintLiteral i{Source{}, &u32, 2};
   EXPECT_EQ("__sint__u32_2", i.name());
 }
 
diff --git a/src/ast/switch_statement_test.cc b/src/ast/switch_statement_test.cc
index bd610faa6f..41232373fb 100644
--- a/src/ast/switch_statement_test.cc
+++ b/src/ast/switch_statement_test.cc
@@ -32,7 +32,7 @@ TEST_F(SwitchStatementTest, Creation) {
   type::I32 i32;
 
   CaseSelectorList lit;
-  lit.push_back(create<SintLiteral>(&i32, 1));
+  lit.push_back(create<SintLiteral>(Source{}, &i32, 1));
 
   auto* ident =
       create<IdentifierExpression>(mod.RegisterSymbol("ident"), "ident");
@@ -61,7 +61,7 @@ TEST_F(SwitchStatementTest, IsSwitch) {
   type::I32 i32;
 
   CaseSelectorList lit;
-  lit.push_back(create<SintLiteral>(&i32, 2));
+  lit.push_back(create<SintLiteral>(Source{}, &i32, 2));
 
   auto* ident =
       create<IdentifierExpression>(mod.RegisterSymbol("ident"), "ident");
@@ -76,7 +76,7 @@ TEST_F(SwitchStatementTest, IsValid) {
   type::I32 i32;
 
   CaseSelectorList lit;
-  lit.push_back(create<SintLiteral>(&i32, 2));
+  lit.push_back(create<SintLiteral>(Source{}, &i32, 2));
 
   auto* ident =
       create<IdentifierExpression>(mod.RegisterSymbol("ident"), "ident");
@@ -91,7 +91,7 @@ TEST_F(SwitchStatementTest, IsValid_Null_Condition) {
   type::I32 i32;
 
   CaseSelectorList lit;
-  lit.push_back(create<SintLiteral>(&i32, 2));
+  lit.push_back(create<SintLiteral>(Source{}, &i32, 2));
 
   CaseStatementList body;
   body.push_back(create<CaseStatement>(lit, create<BlockStatement>()));
@@ -104,7 +104,7 @@ TEST_F(SwitchStatementTest, IsValid_Invalid_Condition) {
   type::I32 i32;
 
   CaseSelectorList lit;
-  lit.push_back(create<SintLiteral>(&i32, 2));
+  lit.push_back(create<SintLiteral>(Source{}, &i32, 2));
 
   auto* ident = create<IdentifierExpression>(mod.RegisterSymbol(""), "");
   CaseStatementList body;
@@ -118,7 +118,7 @@ TEST_F(SwitchStatementTest, IsValid_Null_BodyStatement) {
   type::I32 i32;
 
   CaseSelectorList lit;
-  lit.push_back(create<SintLiteral>(&i32, 2));
+  lit.push_back(create<SintLiteral>(Source{}, &i32, 2));
 
   auto* ident =
       create<IdentifierExpression>(mod.RegisterSymbol("ident"), "ident");
@@ -163,7 +163,7 @@ TEST_F(SwitchStatementTest, ToStr) {
   type::I32 i32;
 
   CaseSelectorList lit;
-  lit.push_back(create<SintLiteral>(&i32, 2));
+  lit.push_back(create<SintLiteral>(Source{}, &i32, 2));
 
   auto* ident =
       create<IdentifierExpression>(mod.RegisterSymbol("ident"), "ident");
diff --git a/src/ast/uint_literal.cc b/src/ast/uint_literal.cc
index f361e4ac70..c30a60822a 100644
--- a/src/ast/uint_literal.cc
+++ b/src/ast/uint_literal.cc
@@ -22,8 +22,8 @@ TINT_INSTANTIATE_CLASS_ID(tint::ast::UintLiteral);
 namespace tint {
 namespace ast {
 
-UintLiteral::UintLiteral(type::Type* type, uint32_t value)
-    : Base(type), value_(value) {}
+UintLiteral::UintLiteral(const Source& source, type::Type* type, uint32_t value)
+    : Base(source, type), value_(value) {}
 
 UintLiteral::~UintLiteral() = default;
 
@@ -36,7 +36,8 @@ std::string UintLiteral::name() const {
 }
 
 UintLiteral* UintLiteral::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<UintLiteral>(ctx->Clone(type()), value_);
+  return ctx->mod->create<UintLiteral>(ctx->Clone(source()), ctx->Clone(type()),
+                                       value_);
 }
 
 }  // namespace ast
diff --git a/src/ast/uint_literal.h b/src/ast/uint_literal.h
index 822fa8d599..9010b6d593 100644
--- a/src/ast/uint_literal.h
+++ b/src/ast/uint_literal.h
@@ -26,9 +26,10 @@ namespace ast {
 class UintLiteral : public Castable<UintLiteral, IntLiteral> {
  public:
   /// Constructor
+  /// @param source the input source
   /// @param type the type of the literal
   /// @param value the uint literals value
-  UintLiteral(type::Type* type, uint32_t value);
+  UintLiteral(const Source& source, type::Type* type, uint32_t value);
   ~UintLiteral() override;
 
   /// @returns the uint literal value
diff --git a/src/ast/uint_literal_test.cc b/src/ast/uint_literal_test.cc
index 579fdca468..6090de1915 100644
--- a/src/ast/uint_literal_test.cc
+++ b/src/ast/uint_literal_test.cc
@@ -29,14 +29,14 @@ using UintLiteralTest = TestHelper;
 
 TEST_F(UintLiteralTest, Value) {
   type::U32 u32;
-  UintLiteral u{&u32, 47};
+  UintLiteral u{Source{}, &u32, 47};
   ASSERT_TRUE(u.Is<UintLiteral>());
   EXPECT_EQ(u.value(), 47u);
 }
 
 TEST_F(UintLiteralTest, Is) {
   type::U32 u32;
-  UintLiteral u{&u32, 42};
+  UintLiteral u{Source{}, &u32, 42};
   Literal* l = &u;
   EXPECT_FALSE(l->Is<BoolLiteral>());
   EXPECT_FALSE(l->Is<SintLiteral>());
@@ -47,9 +47,8 @@ TEST_F(UintLiteralTest, Is) {
 
 TEST_F(UintLiteralTest, ToStr) {
   type::U32 u32;
-  UintLiteral i{&u32, 42};
-
-  EXPECT_EQ(i.to_str(), "42");
+  UintLiteral u{Source{}, &u32, 42};
+  EXPECT_EQ(u.to_str(), "42");
 }
 
 }  // namespace
diff --git a/src/inspector/inspector_test.cc b/src/inspector/inspector_test.cc
index 5a406238b4..337a705404 100644
--- a/src/inspector/inspector_test.cc
+++ b/src/inspector/inspector_test.cc
@@ -228,28 +228,28 @@ class InspectorHelper {
   /// @param val scalar value for the literal to contain
   /// @returns a Literal of the expected type and value
   ast::Literal* MakeLiteral(ast::type::Type* type, bool* val) {
-    return create<ast::BoolLiteral>(type, *val);
+    return create<ast::BoolLiteral>(Source{}, type, *val);
   }
 
   /// @param type AST type of the literal, must resolve to UIntLiteral
   /// @param val scalar value for the literal to contain
   /// @returns a Literal of the expected type and value
   ast::Literal* MakeLiteral(ast::type::Type* type, uint32_t* val) {
-    return create<ast::UintLiteral>(type, *val);
+    return create<ast::UintLiteral>(Source{}, type, *val);
   }
 
   /// @param type AST type of the literal, must resolve to IntLiteral
   /// @param val scalar value for the literal to contain
   /// @returns a Literal of the expected type and value
   ast::Literal* MakeLiteral(ast::type::Type* type, int32_t* val) {
-    return create<ast::SintLiteral>(type, *val);
+    return create<ast::SintLiteral>(Source{}, type, *val);
   }
 
   /// @param type AST type of the literal, must resolve to FloattLiteral
   /// @param val scalar value for the literal to contain
   /// @returns a Literal of the expected type and value
   ast::Literal* MakeLiteral(ast::type::Type* type, float* val) {
-    return create<ast::FloatLiteral>(type, *val);
+    return create<ast::FloatLiteral>(Source{}, type, *val);
   }
 
   /// @param vec Vector of strings to be searched
diff --git a/src/reader/spirv/function.cc b/src/reader/spirv/function.cc
index e5d22bdca2..17b9edeafe 100644
--- a/src/reader/spirv/function.cc
+++ b/src/reader/spirv/function.cc
@@ -695,7 +695,7 @@ void FunctionEmitter::PushTrueGuard(uint32_t end_id) {
   assert(!statements_stack_.empty());
   const auto& top = statements_stack_.back();
 
-  auto* cond = MakeTrue();
+  auto* cond = MakeTrue(Source{});
   auto* body = create<ast::BlockStatement>();
   AddStatement(
       create<ast::IfStatement>(Source{}, cond, body, ast::ElseStatementList{}));
@@ -2142,7 +2142,7 @@ bool FunctionEmitter::EmitIfStart(const BlockInfo& block_info) {
                               ast::StorageClass::kFunction,    // storage_class
                               parser_impl_.Bool(),             // type
                               false,                           // is_const
-                              MakeTrue(),                      // constructor
+                              MakeTrue(Source{}),              // constructor
                               ast::VariableDecorationList{});  // decorations
     auto* guard_decl = create<ast::VariableDeclStatement>(guard_var);
     AddStatement(guard_decl);
@@ -2354,10 +2354,10 @@ bool FunctionEmitter::EmitSwitchStart(const BlockInfo& block_info) {
         const uint32_t value32 = uint32_t(value & 0xFFFFFFFF);
         if (selector.type->is_unsigned_scalar_or_vector()) {
           selectors.emplace_back(
-              create<ast::UintLiteral>(selector.type, value32));
+              create<ast::UintLiteral>(Source{}, selector.type, value32));
         } else {
           selectors.emplace_back(
-              create<ast::SintLiteral>(selector.type, value32));
+              create<ast::SintLiteral>(Source{}, selector.type, value32));
         }
       }
     }
@@ -2572,7 +2572,7 @@ ast::Statement* FunctionEmitter::MakeBranchDetailed(
         return create<ast::AssignmentStatement>(
             create<ast::IdentifierExpression>(
                 ast_module_.RegisterSymbol(flow_guard), flow_guard),
-            MakeFalse());
+            MakeFalse(Source{}));
       }
 
       // For an unconditional branch, the break out to an if-selection
@@ -3256,7 +3256,7 @@ TypedExpression FunctionEmitter::MakeCompositeExtract(
   auto make_index = [this](uint32_t literal) {
     auto* type = create<ast::type::U32>();
     return create<ast::ScalarConstructorExpression>(
-        create<ast::UintLiteral>(type, literal));
+        create<ast::UintLiteral>(Source{}, type, literal));
   };
 
   const auto composite = inst.GetSingleWordInOperand(0);
@@ -3356,15 +3356,15 @@ TypedExpression FunctionEmitter::MakeCompositeExtract(
   return current_expr;
 }
 
-ast::Expression* FunctionEmitter::MakeTrue() const {
+ast::Expression* FunctionEmitter::MakeTrue(const Source& source) const {
   return create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(parser_impl_.Bool(), true));
+      create<ast::BoolLiteral>(source, parser_impl_.Bool(), true));
 }
 
-ast::Expression* FunctionEmitter::MakeFalse() const {
+ast::Expression* FunctionEmitter::MakeFalse(const Source& source) const {
   ast::type::Bool bool_type;
   return create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(parser_impl_.Bool(), false));
+      create<ast::BoolLiteral>(source, parser_impl_.Bool(), false));
 }
 
 TypedExpression FunctionEmitter::MakeVectorShuffle(
diff --git a/src/reader/spirv/function.h b/src/reader/spirv/function.h
index 8f8eeba5b2..4b234fbd4b 100644
--- a/src/reader/spirv/function.h
+++ b/src/reader/spirv/function.h
@@ -698,7 +698,7 @@ class FunctionEmitter {
   /// return the given value.  Otherwise, wrap the value in a TypeConstructor
   /// expression.
   /// @param value the value to pass through or convert
-  /// @reutrns the value as an I32 value.
+  /// @returns the value as an I32 value.
   TypedExpression ToI32(TypedExpression value);
 
  private:
@@ -865,10 +865,10 @@ class FunctionEmitter {
   void PushTrueGuard(uint32_t end_id);
 
   /// @returns a boolean true expression.
-  ast::Expression* MakeTrue() const;
+  ast::Expression* MakeTrue(const Source&) const;
 
   /// @returns a boolean false expression.
-  ast::Expression* MakeFalse() const;
+  ast::Expression* MakeFalse(const Source&) const;
 
   /// Creates a new `ast::Node` owned by the Module. When the Module is
   /// destructed, the `ast::Node` will also be destructed.
diff --git a/src/reader/spirv/parser_impl.cc b/src/reader/spirv/parser_impl.cc
index 9d46f47911..9ef2d3654c 100644
--- a/src/reader/spirv/parser_impl.cc
+++ b/src/reader/spirv/parser_impl.cc
@@ -1033,7 +1033,7 @@ bool ParserImpl::EmitScalarSpecConstants() {
         ast_type = ConvertType(inst.type_id());
         ast_expr =
             create<ast::ScalarConstructorExpression>(create<ast::BoolLiteral>(
-                ast_type, inst.opcode() == SpvOpSpecConstantTrue));
+                Source{}, ast_type, inst.opcode() == SpvOpSpecConstantTrue));
         break;
       }
       case SpvOpSpecConstant: {
@@ -1042,17 +1042,17 @@ bool ParserImpl::EmitScalarSpecConstants() {
         if (ast_type->Is<ast::type::I32>()) {
           ast_expr =
               create<ast::ScalarConstructorExpression>(create<ast::SintLiteral>(
-                  ast_type, static_cast<int32_t>(literal_value)));
+                  Source{}, ast_type, static_cast<int32_t>(literal_value)));
         } else if (ast_type->Is<ast::type::U32>()) {
           ast_expr =
               create<ast::ScalarConstructorExpression>(create<ast::UintLiteral>(
-                  ast_type, static_cast<uint32_t>(literal_value)));
+                  Source{}, ast_type, static_cast<uint32_t>(literal_value)));
         } else if (ast_type->Is<ast::type::F32>()) {
           float float_value;
           // Copy the bits so we can read them as a float.
           std::memcpy(&float_value, &literal_value, sizeof(float_value));
           ast_expr = create<ast::ScalarConstructorExpression>(
-              create<ast::FloatLiteral>(ast_type, float_value));
+              create<ast::FloatLiteral>(Source{}, ast_type, float_value));
         } else {
           return Fail() << " invalid result type for OpSpecConstant "
                         << inst.PrettyPrint();
@@ -1314,6 +1314,7 @@ TypedExpression ParserImpl::MakeConstantExpression(uint32_t id) {
     return {};
   }
 
+  auto source = GetSourceForInst(inst);
   auto* ast_type = original_ast_type->UnwrapIfNeeded();
 
   // TODO(dneto): Note: NullConstant for int, uint, float map to a regular 0.
@@ -1322,25 +1323,25 @@ TypedExpression ParserImpl::MakeConstantExpression(uint32_t id) {
   // See https://bugs.chromium.org/p/tint/issues/detail?id=34
   if (ast_type->Is<ast::type::U32>()) {
     return {ast_type,
-            create<ast::ScalarConstructorExpression>(
-                create<ast::UintLiteral>(ast_type, spirv_const->GetU32()))};
+            create<ast::ScalarConstructorExpression>(create<ast::UintLiteral>(
+                source, ast_type, spirv_const->GetU32()))};
   }
   if (ast_type->Is<ast::type::I32>()) {
     return {ast_type,
-            create<ast::ScalarConstructorExpression>(
-                create<ast::SintLiteral>(ast_type, spirv_const->GetS32()))};
+            create<ast::ScalarConstructorExpression>(create<ast::SintLiteral>(
+                source, ast_type, spirv_const->GetS32()))};
   }
   if (ast_type->Is<ast::type::F32>()) {
     return {ast_type,
-            create<ast::ScalarConstructorExpression>(
-                create<ast::FloatLiteral>(ast_type, spirv_const->GetFloat()))};
+            create<ast::ScalarConstructorExpression>(create<ast::FloatLiteral>(
+                source, ast_type, spirv_const->GetFloat()))};
   }
   if (ast_type->Is<ast::type::Bool>()) {
     const bool value = spirv_const->AsNullConstant()
                            ? false
                            : spirv_const->AsBoolConstant()->value();
     return {ast_type, create<ast::ScalarConstructorExpression>(
-                          create<ast::BoolLiteral>(ast_type, value))};
+                          create<ast::BoolLiteral>(source, ast_type, value))};
   }
   auto* spirv_composite_const = spirv_const->AsCompositeConstant();
   if (spirv_composite_const != nullptr) {
@@ -1394,19 +1395,19 @@ ast::Expression* ParserImpl::MakeNullValue(ast::type::Type* type) {
 
   if (type->Is<ast::type::Bool>()) {
     return create<ast::ScalarConstructorExpression>(
-        create<ast::BoolLiteral>(type, false));
+        create<ast::BoolLiteral>(Source{}, type, false));
   }
   if (type->Is<ast::type::U32>()) {
     return create<ast::ScalarConstructorExpression>(
-        create<ast::UintLiteral>(type, 0u));
+        create<ast::UintLiteral>(Source{}, type, 0u));
   }
   if (type->Is<ast::type::I32>()) {
     return create<ast::ScalarConstructorExpression>(
-        create<ast::SintLiteral>(type, 0));
+        create<ast::SintLiteral>(Source{}, type, 0));
   }
   if (type->Is<ast::type::F32>()) {
     return create<ast::ScalarConstructorExpression>(
-        create<ast::FloatLiteral>(type, 0.0f));
+        create<ast::FloatLiteral>(Source{}, type, 0.0f));
   }
   if (const auto* vec_ty = type->As<ast::type::Vector>()) {
     ast::ExpressionList ast_components;
diff --git a/src/reader/wgsl/parser_impl.cc b/src/reader/wgsl/parser_impl.cc
index b1db835887..8098051cae 100644
--- a/src/reader/wgsl/parser_impl.cc
+++ b/src/reader/wgsl/parser_impl.cc
@@ -2678,19 +2678,19 @@ Maybe<ast::Literal*> ParserImpl::const_literal() {
   auto t = peek();
   if (match(Token::Type::kTrue)) {
     auto* type = module_.create<ast::type::Bool>();
-    return create<ast::BoolLiteral>(type, true);
+    return create<ast::BoolLiteral>(Source{}, type, true);
   }
   if (match(Token::Type::kFalse)) {
     auto* type = module_.create<ast::type::Bool>();
-    return create<ast::BoolLiteral>(type, false);
+    return create<ast::BoolLiteral>(Source{}, type, false);
   }
   if (match(Token::Type::kSintLiteral)) {
     auto* type = module_.create<ast::type::I32>();
-    return create<ast::SintLiteral>(type, t.to_i32());
+    return create<ast::SintLiteral>(Source{}, type, t.to_i32());
   }
   if (match(Token::Type::kUintLiteral)) {
     auto* type = module_.create<ast::type::U32>();
-    return create<ast::UintLiteral>(type, t.to_u32());
+    return create<ast::UintLiteral>(Source{}, type, t.to_u32());
   }
   if (match(Token::Type::kFloatLiteral)) {
     auto p = peek();
@@ -2699,7 +2699,7 @@ Maybe<ast::Literal*> ParserImpl::const_literal() {
       add_error(p.source(), "float literals must not be suffixed with 'f'");
     }
     auto* type = module_.create<ast::type::F32>();
-    return create<ast::FloatLiteral>(type, t.to_f32());
+    return create<ast::FloatLiteral>(Source{}, type, t.to_f32());
   }
   return Failure::kNoMatch;
 }
diff --git a/src/transform/bound_array_accessors.cc b/src/transform/bound_array_accessors.cc
index ba5e9541fe..a5b53f259e 100644
--- a/src/transform/bound_array_accessors.cc
+++ b/src/transform/bound_array_accessors.cc
@@ -105,13 +105,15 @@ ast::ArrayAccessorExpression* BoundArrayAccessors::Transform(
       } else if (val >= int32_t(size)) {
         val = int32_t(size) - 1;
       }
-      lit = ctx->mod->create<ast::SintLiteral>(ctx->Clone(sint->type()), val);
+      lit = ctx->mod->create<ast::SintLiteral>(ctx->Clone(sint->source()),
+                                               ctx->Clone(sint->type()), val);
     } else if (auto* uint = lit->As<ast::UintLiteral>()) {
       uint32_t val = uint->value();
       if (val >= size - 1) {
         val = size - 1;
       }
-      lit = ctx->mod->create<ast::UintLiteral>(ctx->Clone(uint->type()), val);
+      lit = ctx->mod->create<ast::UintLiteral>(ctx->Clone(uint->source()),
+                                               ctx->Clone(uint->type()), val);
     } else {
       diag::Diagnostic err;
       err.severity = diag::Severity::Error;
@@ -132,7 +134,7 @@ ast::ArrayAccessorExpression* BoundArrayAccessors::Transform(
     params.push_back(
         ctx->mod->create<ast::TypeConstructorExpression>(u32, cast_expr));
     params.push_back(ctx->mod->create<ast::ScalarConstructorExpression>(
-        ctx->mod->create<ast::UintLiteral>(u32, size - 1)));
+        ctx->mod->create<ast::UintLiteral>(Source{}, u32, size - 1)));
 
     auto* call_expr = ctx->mod->create<ast::CallExpression>(
         ctx->mod->create<ast::IdentifierExpression>(
diff --git a/src/transform/emit_vertex_point_size.cc b/src/transform/emit_vertex_point_size.cc
index 1c53e05040..ac07d6fd56 100644
--- a/src/transform/emit_vertex_point_size.cc
+++ b/src/transform/emit_vertex_point_size.cc
@@ -66,7 +66,7 @@ Transform::Output EmitVertexPointSize::Run(ast::Module* in) {
 
   // Build the AST expression & statement for assigning pointsize one.
   auto* one = mod->create<ast::ScalarConstructorExpression>(
-      mod->create<ast::FloatLiteral>(f32, 1.0f));
+      mod->create<ast::FloatLiteral>(Source{}, f32, 1.0f));
   auto* pointsize_ident = mod->create<ast::IdentifierExpression>(
       Source{}, mod->RegisterSymbol(kPointSizeVar), kPointSizeVar);
   auto* pointsize_assign =
diff --git a/src/transform/vertex_pulling.cc b/src/transform/vertex_pulling.cc
index 05fbae5e8b..8fa3949651 100644
--- a/src/transform/vertex_pulling.cc
+++ b/src/transform/vertex_pulling.cc
@@ -353,7 +353,7 @@ void VertexPulling::State::AddVertexPullingPreamble(
 
 ast::Expression* VertexPulling::State::GenUint(uint32_t value) {
   return mod->create<ast::ScalarConstructorExpression>(
-      mod->create<ast::UintLiteral>(GetU32Type(), value));
+      mod->create<ast::UintLiteral>(Source{}, GetU32Type(), value));
 }
 
 ast::Expression* VertexPulling::State::CreatePullingPositionIdent() {
diff --git a/src/type_determiner_test.cc b/src/type_determiner_test.cc
index 1749a19368..9386c1dce4 100644
--- a/src/type_determiner_test.cc
+++ b/src/type_determiner_test.cc
@@ -128,9 +128,9 @@ TEST_F(TypeDeterminerTest, Stmt_Assign) {
   ast::type::I32 i32;
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.3f));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.3f));
 
   ast::AssignmentStatement assign(lhs, rhs);
 
@@ -147,15 +147,15 @@ TEST_F(TypeDeterminerTest, Stmt_Case) {
   ast::type::F32 f32;
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.3f));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.3f));
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(lhs, rhs));
 
   ast::CaseSelectorList lit;
-  lit.push_back(create<ast::SintLiteral>(&i32, 3));
+  lit.push_back(create<ast::SintLiteral>(Source{}, &i32, 3));
   ast::CaseStatement cse(lit, body);
 
   EXPECT_TRUE(td()->DetermineResultType(&cse));
@@ -170,9 +170,9 @@ TEST_F(TypeDeterminerTest, Stmt_Block) {
   ast::type::F32 f32;
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.3f));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.3f));
 
   ast::BlockStatement block;
   block.append(create<ast::AssignmentStatement>(lhs, rhs));
@@ -189,15 +189,15 @@ TEST_F(TypeDeterminerTest, Stmt_Else) {
   ast::type::F32 f32;
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.3f));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.3f));
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(lhs, rhs));
 
   ast::ElseStatement stmt(create<ast::ScalarConstructorExpression>(
-                              create<ast::SintLiteral>(&i32, 3)),
+                              create<ast::SintLiteral>(Source{}, &i32, 3)),
                           body);
 
   EXPECT_TRUE(td()->DetermineResultType(&stmt));
@@ -214,29 +214,29 @@ TEST_F(TypeDeterminerTest, Stmt_If) {
   ast::type::F32 f32;
 
   auto* else_lhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
   auto* else_rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.3f));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.3f));
 
   auto* else_body = create<ast::BlockStatement>();
   else_body->append(create<ast::AssignmentStatement>(else_lhs, else_rhs));
 
-  auto* else_stmt =
-      create<ast::ElseStatement>(create<ast::ScalarConstructorExpression>(
-                                     create<ast::SintLiteral>(&i32, 3)),
-                                 else_body);
+  auto* else_stmt = create<ast::ElseStatement>(
+      create<ast::ScalarConstructorExpression>(
+          create<ast::SintLiteral>(Source{}, &i32, 3)),
+      else_body);
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.3f));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.3f));
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(lhs, rhs));
 
   ast::IfStatement stmt(Source{},
                         create<ast::ScalarConstructorExpression>(
-                            create<ast::SintLiteral>(&i32, 3)),
+                            create<ast::SintLiteral>(Source{}, &i32, 3)),
                         body, ast::ElseStatementList{else_stmt});
 
   EXPECT_TRUE(td()->DetermineResultType(&stmt));
@@ -257,17 +257,17 @@ TEST_F(TypeDeterminerTest, Stmt_Loop) {
   ast::type::F32 f32;
 
   auto* body_lhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
   auto* body_rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.3f));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.3f));
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(body_lhs, body_rhs));
 
   auto* continuing_lhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
   auto* continuing_rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.3f));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.3f));
 
   auto* continuing = create<ast::BlockStatement>();
   continuing->append(
@@ -290,7 +290,7 @@ TEST_F(TypeDeterminerTest, Stmt_Return) {
   ast::type::I32 i32;
 
   auto* cond = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
 
   ast::ReturnStatement ret(Source{}, cond);
 
@@ -310,21 +310,21 @@ TEST_F(TypeDeterminerTest, Stmt_Switch) {
   ast::type::F32 f32;
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.3f));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.3f));
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(lhs, rhs));
 
   ast::CaseSelectorList lit;
-  lit.push_back(create<ast::SintLiteral>(&i32, 3));
+  lit.push_back(create<ast::SintLiteral>(Source{}, &i32, 3));
 
   ast::CaseStatementList cases;
   cases.push_back(create<ast::CaseStatement>(lit, body));
 
   ast::SwitchStatement stmt(create<ast::ScalarConstructorExpression>(
-                                create<ast::SintLiteral>(&i32, 2)),
+                                create<ast::SintLiteral>(Source{}, &i32, 2)),
                             cases);
 
   EXPECT_TRUE(td()->DetermineResultType(&stmt)) << td()->error();
@@ -400,8 +400,8 @@ TEST_F(TypeDeterminerTest, Stmt_VariableDecl) {
       &i32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::SintLiteral>(Source{}, &i32, 2)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
   auto* init = var->constructor();
 
   ast::VariableDeclStatement decl(var);
@@ -420,8 +420,8 @@ TEST_F(TypeDeterminerTest, Stmt_VariableDecl_ModuleScope) {
       &i32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::SintLiteral>(Source{}, &i32, 2)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
   auto* init = var->constructor();
 
   mod->AddGlobalVariable(var);
@@ -444,7 +444,7 @@ TEST_F(TypeDeterminerTest, Expr_ArrayAccessor_Array) {
   ast::type::Array ary(&f32, 3, ast::ArrayDecorationList{});
 
   auto* idx = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
   auto* var =
       create<ast::Variable>(Source{},                        // source
                             "my_var",                        // name
@@ -476,7 +476,7 @@ TEST_F(TypeDeterminerTest, Expr_ArrayAccessor_Alias_Array) {
   ast::type::Alias aary(mod->RegisterSymbol("myarrty"), "myarrty", &ary);
 
   auto* idx = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
   auto* var =
       create<ast::Variable>(Source{},                        // source
                             "my_var",                        // name
@@ -507,7 +507,7 @@ TEST_F(TypeDeterminerTest, Expr_ArrayAccessor_Array_Constant) {
   ast::type::Array ary(&f32, 3, ast::ArrayDecorationList{});
 
   auto* idx = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
   auto* var =
       create<ast::Variable>(Source{},                        // source
                             "my_var",                        // name
@@ -536,7 +536,7 @@ TEST_F(TypeDeterminerTest, Expr_ArrayAccessor_Matrix) {
   ast::type::Matrix mat(&f32, 3, 2);
 
   auto* idx = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
   auto* var =
       create<ast::Variable>(Source{},                        // source
                             "my_var",                        // name
@@ -568,9 +568,9 @@ TEST_F(TypeDeterminerTest, Expr_ArrayAccessor_Matrix_BothDimensions) {
   ast::type::Matrix mat(&f32, 3, 2);
 
   auto* idx1 = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
   auto* idx2 = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1));
+      create<ast::SintLiteral>(Source{}, &i32, 1));
   auto* var =
       create<ast::Variable>(Source{},                        // source
                             "my_var",                        // name
@@ -605,7 +605,7 @@ TEST_F(TypeDeterminerTest, Expr_ArrayAccessor_Vector) {
   ast::type::Vector vec(&f32, 3);
 
   auto* idx = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
   auto* var =
       create<ast::Variable>(Source{},                        // source
                             "my_var",                        // name
@@ -680,7 +680,7 @@ TEST_F(TypeDeterminerTest, Expr_Call_WithParams) {
 
   ast::ExpressionList call_params;
   call_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.4)));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.4)));
 
   auto* param = call_params.back();
 
@@ -700,7 +700,7 @@ TEST_F(TypeDeterminerTest, Expr_Call_Intrinsic) {
 
   ast::ExpressionList call_params;
   call_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.4)));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.4)));
 
   ast::CallExpression call(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("round"), "round"),
@@ -730,7 +730,8 @@ TEST_F(TypeDeterminerTest, Expr_Cast) {
 
 TEST_F(TypeDeterminerTest, Expr_Constructor_Scalar) {
   ast::type::F32 f32;
-  ast::ScalarConstructorExpression s(create<ast::FloatLiteral>(&f32, 1.0f));
+  ast::ScalarConstructorExpression s(
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f));
 
   EXPECT_TRUE(td()->DetermineResultType(&s));
   ASSERT_NE(s.result_type(), nullptr);
@@ -743,11 +744,11 @@ TEST_F(TypeDeterminerTest, Expr_Constructor_Type) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::TypeConstructorExpression tc(&vec, vals);
 
@@ -1135,7 +1136,7 @@ TEST_F(TypeDeterminerTest, Function_NotRegisterFunctionVariable) {
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("var"), "var"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 1.f))));
+          create<ast::FloatLiteral>(Source{}, &f32, 1.f))));
 
   ast::VariableList params;
   auto* func =
@@ -1365,7 +1366,7 @@ TEST_F(TypeDeterminerTest, Expr_Accessor_MultiLevel) {
   auto* foo_ident =
       create<ast::IdentifierExpression>(mod->RegisterSymbol("foo"), "foo");
   auto* idx = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 0));
+      create<ast::SintLiteral>(Source{}, &i32, 0));
   auto* swizzle =
       create<ast::IdentifierExpression>(mod->RegisterSymbol("yx"), "yx");
 
@@ -2933,7 +2934,7 @@ TEST_P(ImportData_SingleParamTest, Scalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -2953,11 +2954,11 @@ TEST_P(ImportData_SingleParamTest, Vector) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
@@ -2980,7 +2981,7 @@ TEST_P(ImportData_SingleParamTest, Error_Integer) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -3012,11 +3013,11 @@ TEST_P(ImportData_SingleParamTest, Error_MultipleParams) {
   ast::type::F32 f32;
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -3062,7 +3063,7 @@ TEST_P(ImportData_SingleParam_FloatOrInt_Test, Float_Scalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -3082,11 +3083,11 @@ TEST_P(ImportData_SingleParam_FloatOrInt_Test, Float_Vector) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
@@ -3109,7 +3110,7 @@ TEST_P(ImportData_SingleParam_FloatOrInt_Test, Sint_Scalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, -11)));
+      create<ast::SintLiteral>(Source{}, &i32, -11)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -3129,11 +3130,11 @@ TEST_P(ImportData_SingleParam_FloatOrInt_Test, Sint_Vector) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 3)));
+      create<ast::SintLiteral>(Source{}, &i32, 3)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
@@ -3156,7 +3157,7 @@ TEST_P(ImportData_SingleParam_FloatOrInt_Test, Uint_Scalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
+      create<ast::UintLiteral>(Source{}, &u32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -3176,11 +3177,11 @@ TEST_P(ImportData_SingleParam_FloatOrInt_Test, Uint_Vector) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1.0f)));
+      create<ast::UintLiteral>(Source{}, &u32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1.0f)));
+      create<ast::UintLiteral>(Source{}, &u32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 3.0f)));
+      create<ast::UintLiteral>(Source{}, &u32, 3.0f)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
@@ -3203,7 +3204,7 @@ TEST_P(ImportData_SingleParam_FloatOrInt_Test, Error_Bool) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, false)));
+      create<ast::BoolLiteral>(Source{}, &bool_type, false)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -3235,11 +3236,11 @@ TEST_P(ImportData_SingleParam_FloatOrInt_Test, Error_MultipleParams) {
   ast::type::F32 f32;
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -3260,7 +3261,7 @@ TEST_F(TypeDeterminerTest, ImportData_Length_Scalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   ASSERT_TRUE(td()->DetermineResultType(params)) << td()->error();
 
@@ -3280,11 +3281,11 @@ TEST_F(TypeDeterminerTest, ImportData_Length_FloatVector) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
@@ -3304,7 +3305,7 @@ TEST_F(TypeDeterminerTest, ImportData_Length_Error_Integer) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(mod->RegisterSymbol("length"),
                                                   "length");
@@ -3332,11 +3333,11 @@ TEST_F(TypeDeterminerTest, ImportData_Length_Error_MultipleParams) {
   ast::type::F32 f32;
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(mod->RegisterSymbol("length"),
                                                   "length");
@@ -3355,9 +3356,9 @@ TEST_P(ImportData_TwoParamTest, Scalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -3377,19 +3378,19 @@ TEST_P(ImportData_TwoParamTest, Vector) {
 
   ast::ExpressionList vals_1;
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList vals_2;
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
@@ -3413,9 +3414,9 @@ TEST_P(ImportData_TwoParamTest, Error_Integer) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2)));
+      create<ast::SintLiteral>(Source{}, &i32, 2)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -3447,7 +3448,7 @@ TEST_P(ImportData_TwoParamTest, Error_OneParam) {
   ast::type::F32 f32;
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -3467,17 +3468,17 @@ TEST_P(ImportData_TwoParamTest, Error_MismatchedParamCount) {
 
   ast::ExpressionList vals_1;
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
 
   ast::ExpressionList vals_2;
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec2, vals_1));
@@ -3500,15 +3501,15 @@ TEST_P(ImportData_TwoParamTest, Error_MismatchedParamType) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
 
   auto* ident = create<ast::IdentifierExpression>(
@@ -3526,11 +3527,11 @@ TEST_P(ImportData_TwoParamTest, Error_TooManyParams) {
   ast::type::F32 f32;
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -3554,9 +3555,9 @@ TEST_F(TypeDeterminerTest, ImportData_Distance_Scalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol("distance"), "distance");
@@ -3574,19 +3575,19 @@ TEST_F(TypeDeterminerTest, ImportData_Distance_Vector) {
 
   ast::ExpressionList vals_1;
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList vals_2;
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
@@ -3607,9 +3608,9 @@ TEST_F(TypeDeterminerTest, ImportData_Distance_Error_Integer) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2)));
+      create<ast::SintLiteral>(Source{}, &i32, 2)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol("distance"), "distance");
@@ -3637,7 +3638,7 @@ TEST_F(TypeDeterminerTest, ImportData_Distance_Error_OneParam) {
   ast::type::F32 f32;
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol("distance"), "distance");
@@ -3655,17 +3656,17 @@ TEST_F(TypeDeterminerTest, ImportData_Distance_Error_MismatchedParamCount) {
 
   ast::ExpressionList vals_1;
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
 
   ast::ExpressionList vals_2;
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec2, vals_1));
@@ -3685,15 +3686,15 @@ TEST_F(TypeDeterminerTest, ImportData_Distance_Error_MismatchedParamType) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
 
   auto* ident = create<ast::IdentifierExpression>(
@@ -3708,11 +3709,11 @@ TEST_F(TypeDeterminerTest, ImportData_Distance_Error_TooManyParams) {
   ast::type::F32 f32;
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol("distance"), "distance");
@@ -3729,19 +3730,19 @@ TEST_F(TypeDeterminerTest, ImportData_Cross) {
 
   ast::ExpressionList vals_1;
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList vals_2;
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
@@ -3763,9 +3764,9 @@ TEST_F(TypeDeterminerTest, ImportData_Cross_Error_Scalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
 
   auto* ident =
       create<ast::IdentifierExpression>(mod->RegisterSymbol("cross"), "cross");
@@ -3782,19 +3783,19 @@ TEST_F(TypeDeterminerTest, ImportData_Cross_Error_IntType) {
 
   ast::ExpressionList vals_1;
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 3)));
+      create<ast::SintLiteral>(Source{}, &i32, 3)));
 
   ast::ExpressionList vals_2;
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 3)));
+      create<ast::SintLiteral>(Source{}, &i32, 3)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
@@ -3826,11 +3827,11 @@ TEST_F(TypeDeterminerTest, ImportData_Cross_Error_TooFewParams) {
 
   ast::ExpressionList vals_1;
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
@@ -3850,27 +3851,27 @@ TEST_F(TypeDeterminerTest, ImportData_Cross_Error_TooManyParams) {
 
   ast::ExpressionList vals_1;
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList vals_2;
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList vals_3;
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
@@ -3894,11 +3895,11 @@ TEST_P(ImportData_ThreeParamTest, Scalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -3918,27 +3919,27 @@ TEST_P(ImportData_ThreeParamTest, Vector) {
 
   ast::ExpressionList vals_1;
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList vals_2;
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList vals_3;
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
@@ -3963,11 +3964,11 @@ TEST_P(ImportData_ThreeParamTest, Error_Integer) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2)));
+      create<ast::SintLiteral>(Source{}, &i32, 2)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 3)));
+      create<ast::SintLiteral>(Source{}, &i32, 3)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -3999,7 +4000,7 @@ TEST_P(ImportData_ThreeParamTest, Error_OneParam) {
   ast::type::F32 f32;
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -4016,9 +4017,9 @@ TEST_P(ImportData_ThreeParamTest, Error_TwoParams) {
   ast::type::F32 f32;
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -4038,25 +4039,25 @@ TEST_P(ImportData_ThreeParamTest, Error_MismatchedParamCount) {
 
   ast::ExpressionList vals_1;
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
 
   ast::ExpressionList vals_2;
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList vals_3;
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec2, vals_1));
@@ -4080,17 +4081,17 @@ TEST_P(ImportData_ThreeParamTest, Error_MismatchedParamType) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
 
   auto* ident = create<ast::IdentifierExpression>(
@@ -4108,13 +4109,13 @@ TEST_P(ImportData_ThreeParamTest, Error_TooManyParams) {
   ast::type::F32 f32;
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -4143,11 +4144,11 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Float_Scalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -4167,27 +4168,27 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Float_Vector) {
 
   ast::ExpressionList vals_1;
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList vals_2;
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList vals_3;
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
@@ -4212,11 +4213,11 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Sint_Scalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -4236,27 +4237,27 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Sint_Vector) {
 
   ast::ExpressionList vals_1;
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 3)));
+      create<ast::SintLiteral>(Source{}, &i32, 3)));
 
   ast::ExpressionList vals_2;
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 3)));
+      create<ast::SintLiteral>(Source{}, &i32, 3)));
 
   ast::ExpressionList vals_3;
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 3)));
+      create<ast::SintLiteral>(Source{}, &i32, 3)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
@@ -4281,11 +4282,11 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Uint_Scalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
+      create<ast::UintLiteral>(Source{}, &u32, 1)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
+      create<ast::UintLiteral>(Source{}, &u32, 1)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
+      create<ast::UintLiteral>(Source{}, &u32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -4305,27 +4306,27 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Uint_Vector) {
 
   ast::ExpressionList vals_1;
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
+      create<ast::UintLiteral>(Source{}, &u32, 1)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
+      create<ast::UintLiteral>(Source{}, &u32, 1)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 3)));
+      create<ast::UintLiteral>(Source{}, &u32, 3)));
 
   ast::ExpressionList vals_2;
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
+      create<ast::UintLiteral>(Source{}, &u32, 1)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
+      create<ast::UintLiteral>(Source{}, &u32, 1)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 3)));
+      create<ast::UintLiteral>(Source{}, &u32, 3)));
 
   ast::ExpressionList vals_3;
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
+      create<ast::UintLiteral>(Source{}, &u32, 1)));
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
+      create<ast::UintLiteral>(Source{}, &u32, 1)));
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 3)));
+      create<ast::UintLiteral>(Source{}, &u32, 3)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
@@ -4350,11 +4351,11 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Error_Bool) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, true)));
+      create<ast::BoolLiteral>(Source{}, &bool_type, true)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, false)));
+      create<ast::BoolLiteral>(Source{}, &bool_type, false)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, true)));
+      create<ast::BoolLiteral>(Source{}, &bool_type, true)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -4386,7 +4387,7 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Error_OneParam) {
   ast::type::F32 f32;
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -4403,9 +4404,9 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Error_TwoParams) {
   ast::type::F32 f32;
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -4425,25 +4426,25 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Error_MismatchedParamCount) {
 
   ast::ExpressionList vals_1;
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
 
   ast::ExpressionList vals_2;
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList vals_3;
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals_3.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec2, vals_1));
@@ -4467,17 +4468,17 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Error_MismatchedParamType) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
 
   auto* ident = create<ast::IdentifierExpression>(
@@ -4495,13 +4496,13 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Error_TooManyParams) {
   ast::type::F32 f32;
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -4526,7 +4527,7 @@ TEST_P(ImportData_Int_SingleParamTest, Scalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -4546,11 +4547,11 @@ TEST_P(ImportData_Int_SingleParamTest, Vector) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 3)));
+      create<ast::SintLiteral>(Source{}, &i32, 3)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
@@ -4573,7 +4574,7 @@ TEST_P(ImportData_Int_SingleParamTest, Error_Float) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -4605,11 +4606,11 @@ TEST_P(ImportData_Int_SingleParamTest, Error_MultipleParams) {
   ast::type::I32 i32;
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -4636,9 +4637,9 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Scalar_Signed) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -4657,9 +4658,9 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Scalar_Unsigned) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
+      create<ast::UintLiteral>(Source{}, &u32, 1)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
+      create<ast::UintLiteral>(Source{}, &u32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -4678,9 +4679,9 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Scalar_Float) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -4700,19 +4701,19 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Vector_Signed) {
 
   ast::ExpressionList vals_1;
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 3)));
+      create<ast::SintLiteral>(Source{}, &i32, 3)));
 
   ast::ExpressionList vals_2;
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 3)));
+      create<ast::SintLiteral>(Source{}, &i32, 3)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
@@ -4737,19 +4738,19 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Vector_Unsigned) {
 
   ast::ExpressionList vals_1;
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
+      create<ast::UintLiteral>(Source{}, &u32, 1)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
+      create<ast::UintLiteral>(Source{}, &u32, 1)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 3)));
+      create<ast::UintLiteral>(Source{}, &u32, 3)));
 
   ast::ExpressionList vals_2;
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
+      create<ast::UintLiteral>(Source{}, &u32, 1)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
+      create<ast::UintLiteral>(Source{}, &u32, 1)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 3)));
+      create<ast::UintLiteral>(Source{}, &u32, 3)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
@@ -4774,19 +4775,19 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Vector_Float) {
 
   ast::ExpressionList vals_1;
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3)));
 
   ast::ExpressionList vals_2;
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
@@ -4810,9 +4811,9 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Error_Bool) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, true)));
+      create<ast::BoolLiteral>(Source{}, &bool_type, true)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, false)));
+      create<ast::BoolLiteral>(Source{}, &bool_type, false)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -4844,7 +4845,7 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Error_OneParam) {
   ast::type::I32 i32;
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
@@ -4864,17 +4865,17 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Error_MismatchedParamCount) {
 
   ast::ExpressionList vals_1;
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals_1.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
 
   ast::ExpressionList vals_2;
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals_2.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 3)));
+      create<ast::SintLiteral>(Source{}, &i32, 3)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::TypeConstructorExpression>(&vec2, vals_1));
@@ -4897,15 +4898,15 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Error_MismatchedParamType) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 3)));
+      create<ast::SintLiteral>(Source{}, &i32, 3)));
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
 
   auto* ident = create<ast::IdentifierExpression>(
@@ -4923,11 +4924,11 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Error_TooManyParams) {
   ast::type::I32 i32;
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod->RegisterSymbol(param.name), param.name);
diff --git a/src/validator/validator_control_block_test.cc b/src/validator/validator_control_block_test.cc
index e60af3d3f4..087ba4868f 100644
--- a/src/validator/validator_control_block_test.cc
+++ b/src/validator/validator_control_block_test.cc
@@ -50,8 +50,8 @@ TEST_F(ValidateControlBlockTest, SwitchSelectorExpressionNoneIntegerType_Fail) {
       &f32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&f32, 3.14f)),  // constructor
-      ast::VariableDecorationList{});              // decorations
+          create<ast::SintLiteral>(Source{}, &f32, 3.14f)),  // constructor
+      ast::VariableDecorationList{});                        // decorations
 
   auto* cond = create<ast::IdentifierExpression>(
       Source{Source::Location{12, 34}}, mod()->RegisterSymbol("a"), "a");
@@ -84,13 +84,13 @@ TEST_F(ValidateControlBlockTest, SwitchWithoutDefault_Fail) {
       &i32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::SintLiteral>(Source{}, &i32, 2)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
 
   auto* cond =
       create<ast::IdentifierExpression>(mod()->RegisterSymbol("a"), "a");
   ast::CaseSelectorList csl;
-  csl.push_back(create<ast::SintLiteral>(&i32, 1));
+  csl.push_back(create<ast::SintLiteral>(Source{}, &i32, 1));
   ast::CaseStatementList body;
   body.push_back(
       create<ast::CaseStatement>(csl, create<ast::BlockStatement>()));
@@ -122,8 +122,8 @@ TEST_F(ValidateControlBlockTest, SwitchWithTwoDefault_Fail) {
       &i32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::SintLiteral>(Source{}, &i32, 2)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
 
   ast::CaseStatementList switch_body;
   auto* cond =
@@ -135,7 +135,7 @@ TEST_F(ValidateControlBlockTest, SwitchWithTwoDefault_Fail) {
       create<ast::CaseStatement>(default_csl_1, block_default_1));
 
   ast::CaseSelectorList csl_case_1;
-  csl_case_1.push_back(create<ast::SintLiteral>(&i32, 1));
+  csl_case_1.push_back(create<ast::SintLiteral>(Source{}, &i32, 1));
   auto* block_case_1 = create<ast::BlockStatement>();
   switch_body.push_back(create<ast::CaseStatement>(csl_case_1, block_case_1));
 
@@ -172,15 +172,15 @@ TEST_F(ValidateControlBlockTest,
       &i32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::SintLiteral>(Source{}, &i32, 2)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
 
   ast::CaseStatementList switch_body;
   auto* cond =
       create<ast::IdentifierExpression>(mod()->RegisterSymbol("a"), "a");
 
   ast::CaseSelectorList csl;
-  csl.push_back(create<ast::UintLiteral>(&u32, 1));
+  csl.push_back(create<ast::UintLiteral>(Source{}, &u32, 1));
   switch_body.push_back(create<ast::CaseStatement>(
       Source{Source::Location{12, 34}}, csl, create<ast::BlockStatement>()));
 
@@ -215,15 +215,15 @@ TEST_F(ValidateControlBlockTest,
       &u32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::UintLiteral>(&u32, 2)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::UintLiteral>(Source{}, &u32, 2)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
 
   ast::CaseStatementList switch_body;
   auto* cond =
       create<ast::IdentifierExpression>(mod()->RegisterSymbol("a"), "a");
 
   ast::CaseSelectorList csl;
-  csl.push_back(create<ast::SintLiteral>(&i32, -1));
+  csl.push_back(create<ast::SintLiteral>(Source{}, &i32, -1));
   switch_body.push_back(create<ast::CaseStatement>(
       Source{Source::Location{12, 34}}, csl, create<ast::BlockStatement>()));
 
@@ -257,21 +257,21 @@ TEST_F(ValidateControlBlockTest, NonUniqueCaseSelectorValueUint_Fail) {
       &u32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::UintLiteral>(&u32, 3)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::UintLiteral>(Source{}, &u32, 3)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
 
   ast::CaseStatementList switch_body;
   auto* cond =
       create<ast::IdentifierExpression>(mod()->RegisterSymbol("a"), "a");
 
   ast::CaseSelectorList csl_1;
-  csl_1.push_back(create<ast::UintLiteral>(&u32, 0));
+  csl_1.push_back(create<ast::UintLiteral>(Source{}, &u32, 0));
   switch_body.push_back(
       create<ast::CaseStatement>(csl_1, create<ast::BlockStatement>()));
 
   ast::CaseSelectorList csl_2;
-  csl_2.push_back(create<ast::UintLiteral>(&u32, 2));
-  csl_2.push_back(create<ast::UintLiteral>(&u32, 2));
+  csl_2.push_back(create<ast::UintLiteral>(Source{}, &u32, 2));
+  csl_2.push_back(create<ast::UintLiteral>(Source{}, &u32, 2));
   switch_body.push_back(create<ast::CaseStatement>(
       Source{Source::Location{12, 34}}, csl_2, create<ast::BlockStatement>()));
 
@@ -305,23 +305,23 @@ TEST_F(ValidateControlBlockTest, NonUniqueCaseSelectorValueSint_Fail) {
       &i32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::SintLiteral>(Source{}, &i32, 2)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
 
   ast::CaseStatementList switch_body;
   auto* cond =
       create<ast::IdentifierExpression>(mod()->RegisterSymbol("a"), "a");
 
   ast::CaseSelectorList csl_1;
-  csl_1.push_back(create<ast::SintLiteral>(&i32, 10));
+  csl_1.push_back(create<ast::SintLiteral>(Source{}, &i32, 10));
   switch_body.push_back(
       create<ast::CaseStatement>(csl_1, create<ast::BlockStatement>()));
 
   ast::CaseSelectorList csl_2;
-  csl_2.push_back(create<ast::SintLiteral>(&i32, 0));
-  csl_2.push_back(create<ast::SintLiteral>(&i32, 1));
-  csl_2.push_back(create<ast::SintLiteral>(&i32, 2));
-  csl_2.push_back(create<ast::SintLiteral>(&i32, 10));
+  csl_2.push_back(create<ast::SintLiteral>(Source{}, &i32, 0));
+  csl_2.push_back(create<ast::SintLiteral>(Source{}, &i32, 1));
+  csl_2.push_back(create<ast::SintLiteral>(Source{}, &i32, 2));
+  csl_2.push_back(create<ast::SintLiteral>(Source{}, &i32, 10));
   switch_body.push_back(create<ast::CaseStatement>(
       Source{Source::Location{12, 34}}, csl_2, create<ast::BlockStatement>()));
 
@@ -353,8 +353,8 @@ TEST_F(ValidateControlBlockTest, LastClauseLastStatementIsFallthrough_Fail) {
       &i32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::SintLiteral>(Source{}, &i32, 2)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
 
   auto* cond =
       create<ast::IdentifierExpression>(mod()->RegisterSymbol("a"), "a");
@@ -390,8 +390,8 @@ TEST_F(ValidateControlBlockTest, SwitchCase_Pass) {
       &i32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::SintLiteral>(Source{}, &i32, 2)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
 
   auto* cond =
       create<ast::IdentifierExpression>(mod()->RegisterSymbol("a"), "a");
@@ -401,7 +401,7 @@ TEST_F(ValidateControlBlockTest, SwitchCase_Pass) {
   body.push_back(create<ast::CaseStatement>(Source{Source::Location{12, 34}},
                                             default_csl, block_default));
   ast::CaseSelectorList case_csl;
-  case_csl.push_back(create<ast::SintLiteral>(&i32, 5));
+  case_csl.push_back(create<ast::SintLiteral>(Source{}, &i32, 5));
   auto* block_case = create<ast::BlockStatement>();
   body.push_back(create<ast::CaseStatement>(case_csl, block_case));
 
@@ -430,8 +430,8 @@ TEST_F(ValidateControlBlockTest, SwitchCaseAlias_Pass) {
       &my_int,                   // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&u32, 2)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::SintLiteral>(Source{}, &u32, 2)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
 
   auto* cond =
       create<ast::IdentifierExpression>(mod()->RegisterSymbol("a"), "a");
diff --git a/src/validator/validator_function_test.cc b/src/validator/validator_function_test.cc
index 8440faa8a1..b581bcbd75 100644
--- a/src/validator/validator_function_test.cc
+++ b/src/validator/validator_function_test.cc
@@ -46,8 +46,8 @@ TEST_F(ValidateFunctionTest, VoidFunctionEndWithoutReturnStatement_Pass) {
       &i32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::SintLiteral>(Source{}, &i32, 2)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
 
   ast::VariableList params;
   ast::type::Void void_type;
@@ -94,8 +94,8 @@ TEST_F(ValidateFunctionTest, FunctionEndWithoutReturnStatement_Fail) {
       &i32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::SintLiteral>(Source{}, &i32, 2)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
 
   ast::VariableList params;
   ast::type::Void void_type;
@@ -155,7 +155,7 @@ TEST_F(ValidateFunctionTest, FunctionTypeMustMatchReturnStatementType_fail) {
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
   auto* return_expr = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
 
   body->append(create<ast::ReturnStatement>(Source{Source::Location{12, 34}},
                                             return_expr));
@@ -179,7 +179,7 @@ TEST_F(ValidateFunctionTest, FunctionTypeMustMatchReturnStatementTypeF32_fail) {
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
   auto* return_expr = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
 
   body->append(create<ast::ReturnStatement>(Source{Source::Location{12, 34}},
                                             return_expr));
@@ -205,7 +205,7 @@ TEST_F(ValidateFunctionTest, FunctionNamesMustBeUnique_fail) {
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
   auto* return_expr = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
 
   body->append(create<ast::ReturnStatement>(Source{}, return_expr));
   auto* func =
@@ -215,7 +215,7 @@ TEST_F(ValidateFunctionTest, FunctionNamesMustBeUnique_fail) {
   ast::VariableList params_copy;
   auto* body_copy = create<ast::BlockStatement>();
   auto* return_expr_copy = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
 
   body_copy->append(create<ast::ReturnStatement>(Source{}, return_expr_copy));
   auto* func_copy = create<ast::Function>(
@@ -274,7 +274,7 @@ TEST_F(ValidateFunctionTest, RecursionIsNotAllowedExpr_Fail) {
   auto* body0 = create<ast::BlockStatement>();
   body0->append(create<ast::VariableDeclStatement>(var));
   auto* return_expr = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
 
   body0->append(create<ast::ReturnStatement>(Source{}, return_expr));
   auto* func0 = create<ast::Function>(Source{}, mod()->RegisterSymbol("func"),
@@ -293,7 +293,7 @@ TEST_F(ValidateFunctionTest, Function_WithPipelineStage_NotVoid_Fail) {
   ast::type::I32 i32;
   ast::VariableList params;
   auto* return_expr = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 0));
+      create<ast::SintLiteral>(Source{}, &i32, 0));
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>(Source{}, return_expr));
diff --git a/src/validator/validator_test.cc b/src/validator/validator_test.cc
index 9c5c5d3049..982f4e515a 100644
--- a/src/validator/validator_test.cc
+++ b/src/validator/validator_test.cc
@@ -65,7 +65,7 @@ TEST_F(ValidatorTest, DISABLED_AssignToScalar_Fail) {
   ast::type::I32 i32;
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1));
+      create<ast::SintLiteral>(Source{}, &i32, 1));
   auto* rhs = create<ast::IdentifierExpression>(mod()->RegisterSymbol("my_var"),
                                                 "my_var");
   ast::AssignmentStatement assign(Source{Source::Location{12, 34}}, lhs, rhs);
@@ -83,7 +83,7 @@ TEST_F(ValidatorTest, UsingUndefinedVariable_Fail) {
   auto* lhs = create<ast::IdentifierExpression>(
       Source{Source::Location{12, 34}}, mod()->RegisterSymbol("b"), "b");
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
   auto* assign = create<ast::AssignmentStatement>(
       Source{Source::Location{12, 34}}, lhs, rhs);
 
@@ -101,7 +101,7 @@ TEST_F(ValidatorTest, UsingUndefinedVariableInBlockStatement_Fail) {
   auto* lhs = create<ast::IdentifierExpression>(
       Source{Source::Location{12, 34}}, mod()->RegisterSymbol("b"), "b");
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(
@@ -123,13 +123,13 @@ TEST_F(ValidatorTest, AssignCompatibleTypes_Pass) {
       &i32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::SintLiteral>(Source{}, &i32, 2)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
 
   auto* lhs =
       create<ast::IdentifierExpression>(mod()->RegisterSymbol("a"), "a");
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
 
   ast::AssignmentStatement assign(Source{Source::Location{12, 34}}, lhs, rhs);
   td()->RegisterVariableForTesting(var);
@@ -154,13 +154,13 @@ TEST_F(ValidatorTest, AssignIncompatibleTypes_Fail) {
       &i32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::SintLiteral>(Source{}, &i32, 2)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
 
   auto* lhs =
       create<ast::IdentifierExpression>(mod()->RegisterSymbol("a"), "a");
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.3f));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.3f));
 
   ast::AssignmentStatement assign(Source{Source::Location{12, 34}}, lhs, rhs);
   td()->RegisterVariableForTesting(var);
@@ -188,13 +188,13 @@ TEST_F(ValidatorTest, AssignCompatibleTypesInBlockStatement_Pass) {
       &i32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::SintLiteral>(Source{}, &i32, 2)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
 
   auto* lhs =
       create<ast::IdentifierExpression>(mod()->RegisterSymbol("a"), "a");
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::VariableDeclStatement>(var));
@@ -223,12 +223,12 @@ TEST_F(ValidatorTest, AssignIncompatibleTypesInBlockStatement_Fail) {
       &i32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::SintLiteral>(Source{}, &i32, 2)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
   auto* lhs =
       create<ast::IdentifierExpression>(mod()->RegisterSymbol("a"), "a");
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.3f));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.3f));
 
   ast::BlockStatement block;
   block.append(create<ast::VariableDeclStatement>(var));
@@ -324,14 +324,14 @@ TEST_F(ValidatorTest, UsingUndefinedVariableGlobalVariable_Fail) {
       &f32,                         // type
       false,                        // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 2.1)),  // constructor
-      ast::VariableDecorationList{}));            // decorations
+          create<ast::FloatLiteral>(Source{}, &f32, 2.1)),  // constructor
+      ast::VariableDecorationList{}));                      // decorations
 
   auto* lhs = create<ast::IdentifierExpression>(
       Source{Source::Location{12, 34}}, mod()->RegisterSymbol("not_global_var"),
       "not_global_var");
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.14f));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.14f));
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
@@ -363,13 +363,13 @@ TEST_F(ValidatorTest, UsingUndefinedVariableGlobalVariable_Pass) {
       &f32,                         // type
       false,                        // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 2.1)),  // constructor
-      ast::VariableDecorationList{}));            // decorations
+          create<ast::FloatLiteral>(Source{}, &f32, 2.1)),  // constructor
+      ast::VariableDecorationList{}));                      // decorations
 
   auto* lhs = create<ast::IdentifierExpression>(
       mod()->RegisterSymbol("global_var"), "global_var");
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.14f));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.14f));
 
   ast::VariableList params;
 
@@ -402,19 +402,19 @@ TEST_F(ValidatorTest, UsingUndefinedVariableInnerScope_Fail) {
       &f32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 2.0)),  // constructor
-      ast::VariableDecorationList{});             // decorations
+          create<ast::FloatLiteral>(Source{}, &f32, 2.0)),  // constructor
+      ast::VariableDecorationList{});                       // decorations
 
   ast::type::Bool bool_type;
   auto* cond = create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, true));
+      create<ast::BoolLiteral>(Source{}, &bool_type, true));
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::VariableDeclStatement>(var));
 
   auto* lhs = create<ast::IdentifierExpression>(
       Source{Source::Location{12, 34}}, mod()->RegisterSymbol("a"), "a");
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.14f));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.14f));
 
   auto* outer_body = create<ast::BlockStatement>();
   outer_body->append(
@@ -442,17 +442,17 @@ TEST_F(ValidatorTest, UsingUndefinedVariableOuterScope_Pass) {
       &f32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 2.0)),  // constructor
-      ast::VariableDecorationList{});             // decorations
+          create<ast::FloatLiteral>(Source{}, &f32, 2.0)),  // constructor
+      ast::VariableDecorationList{});                       // decorations
 
   auto* lhs = create<ast::IdentifierExpression>(
       Source{Source::Location{12, 34}}, mod()->RegisterSymbol("a"), "a");
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.14f));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.14f));
 
   ast::type::Bool bool_type;
   auto* cond = create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, true));
+      create<ast::BoolLiteral>(Source{}, &bool_type, true));
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(
       Source{Source::Location{12, 34}}, lhs, rhs));
@@ -479,8 +479,8 @@ TEST_F(ValidatorTest, GlobalVariableUnique_Pass) {
       &f32,                         // type
       false,                        // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 0.1)),  // constructor
-      ast::VariableDecorationList{});             // decorations
+          create<ast::FloatLiteral>(Source{}, &f32, 0.1)),  // constructor
+      ast::VariableDecorationList{});                       // decorations
   mod()->AddGlobalVariable(var0);
 
   auto* var1 = create<ast::Variable>(
@@ -490,8 +490,8 @@ TEST_F(ValidatorTest, GlobalVariableUnique_Pass) {
       &f32,                              // type
       false,                             // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 0)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::SintLiteral>(Source{}, &i32, 0)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
   mod()->AddGlobalVariable(var1);
 
   EXPECT_TRUE(v()->ValidateGlobalVariables(mod()->global_variables()))
@@ -510,8 +510,8 @@ TEST_F(ValidatorTest, GlobalVariableNotUnique_Fail) {
       &f32,                         // type
       false,                        // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 0.1)),  // constructor
-      ast::VariableDecorationList{});             // decorations
+          create<ast::FloatLiteral>(Source{}, &f32, 0.1)),  // constructor
+      ast::VariableDecorationList{});                       // decorations
   mod()->AddGlobalVariable(var0);
 
   auto* var1 = create<ast::Variable>(
@@ -521,8 +521,8 @@ TEST_F(ValidatorTest, GlobalVariableNotUnique_Fail) {
       &f32,                              // type
       false,                             // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 0)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::SintLiteral>(Source{}, &i32, 0)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
   mod()->AddGlobalVariable(var1);
 
   EXPECT_FALSE(v()->ValidateGlobalVariables(mod()->global_variables()));
@@ -543,13 +543,13 @@ TEST_F(ValidatorTest, AssignToConstant_Fail) {
       &i32,                      // type
       true,                      // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::SintLiteral>(Source{}, &i32, 2)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
 
   auto* lhs =
       create<ast::IdentifierExpression>(mod()->RegisterSymbol("a"), "a");
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::VariableDeclStatement>(var));
@@ -580,8 +580,8 @@ TEST_F(ValidatorTest, GlobalVariableFunctionVariableNotUnique_Fail) {
       &f32,                         // type
       false,                        // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 2.1)),  // constructor
-      ast::VariableDecorationList{});             // decorations
+          create<ast::FloatLiteral>(Source{}, &f32, 2.1)),  // constructor
+      ast::VariableDecorationList{});                       // decorations
   mod()->AddGlobalVariable(global_var);
 
   auto* var = create<ast::Variable>(
@@ -591,8 +591,8 @@ TEST_F(ValidatorTest, GlobalVariableFunctionVariableNotUnique_Fail) {
       &f32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 2.0)),  // constructor
-      ast::VariableDecorationList{});             // decorations
+          create<ast::FloatLiteral>(Source{}, &f32, 2.0)),  // constructor
+      ast::VariableDecorationList{});                       // decorations
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::VariableDeclStatement>(
@@ -624,8 +624,8 @@ TEST_F(ValidatorTest, RedeclaredIndentifier_Fail) {
       &i32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2)),  // constructor
-      ast::VariableDecorationList{});          // decorations
+          create<ast::SintLiteral>(Source{}, &i32, 2)),  // constructor
+      ast::VariableDecorationList{});                    // decorations
 
   auto* var_a_float = create<ast::Variable>(
       Source{},                  // source
@@ -634,8 +634,8 @@ TEST_F(ValidatorTest, RedeclaredIndentifier_Fail) {
       &f32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 0.1)),  // constructor
-      ast::VariableDecorationList{});             // decorations
+          create<ast::FloatLiteral>(Source{}, &f32, 0.1)),  // constructor
+      ast::VariableDecorationList{});                       // decorations
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
@@ -667,12 +667,12 @@ TEST_F(ValidatorTest, RedeclaredIdentifierInnerScope_Pass) {
       &f32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 2.0)),  // constructor
-      ast::VariableDecorationList{});             // decorations
+          create<ast::FloatLiteral>(Source{}, &f32, 2.0)),  // constructor
+      ast::VariableDecorationList{});                       // decorations
 
   ast::type::Bool bool_type;
   auto* cond = create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, true));
+      create<ast::BoolLiteral>(Source{}, &bool_type, true));
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::VariableDeclStatement>(var));
 
@@ -683,8 +683,8 @@ TEST_F(ValidatorTest, RedeclaredIdentifierInnerScope_Pass) {
       &f32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 3.14)),  // constructor
-      ast::VariableDecorationList{});              // decorations
+          create<ast::FloatLiteral>(Source{}, &f32, 3.14)),  // constructor
+      ast::VariableDecorationList{});                        // decorations
 
   auto* outer_body = create<ast::BlockStatement>();
   outer_body->append(
@@ -711,8 +711,8 @@ TEST_F(ValidatorTest, DISABLED_RedeclaredIdentifierInnerScope_False) {
       &f32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 3.14)),  // constructor
-      ast::VariableDecorationList{});              // decorations
+          create<ast::FloatLiteral>(Source{}, &f32, 3.14)),  // constructor
+      ast::VariableDecorationList{});                        // decorations
 
   auto* var = create<ast::Variable>(
       Source{},                  // source
@@ -721,12 +721,12 @@ TEST_F(ValidatorTest, DISABLED_RedeclaredIdentifierInnerScope_False) {
       &f32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 2.0)),  // constructor
-      ast::VariableDecorationList{});             // decorations
+          create<ast::FloatLiteral>(Source{}, &f32, 2.0)),  // constructor
+      ast::VariableDecorationList{});                       // decorations
 
   ast::type::Bool bool_type;
   auto* cond = create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, true));
+      create<ast::BoolLiteral>(Source{}, &bool_type, true));
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::VariableDeclStatement>(
       Source{Source::Location{12, 34}}, var));
@@ -753,8 +753,8 @@ TEST_F(ValidatorTest, RedeclaredIdentifierDifferentFunctions_Pass) {
       &f32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 2.0)),  // constructor
-      ast::VariableDecorationList{});             // decorations
+          create<ast::FloatLiteral>(Source{}, &f32, 2.0)),  // constructor
+      ast::VariableDecorationList{});                       // decorations
 
   auto* var1 = create<ast::Variable>(
       Source{},                  // source
@@ -763,8 +763,8 @@ TEST_F(ValidatorTest, RedeclaredIdentifierDifferentFunctions_Pass) {
       &void_type,                // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 1.0)),  // constructor
-      ast::VariableDecorationList{});             // decorations
+          create<ast::FloatLiteral>(Source{}, &f32, 1.0)),  // constructor
+      ast::VariableDecorationList{});                       // decorations
 
   ast::VariableList params0;
   auto* body0 = create<ast::BlockStatement>();
@@ -813,7 +813,7 @@ TEST_F(ValidatorTest, VariableDeclNoConstructor_Pass) {
   auto* lhs =
       create<ast::IdentifierExpression>(mod()->RegisterSymbol("a"), "a");
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::VariableDeclStatement>(var));
diff --git a/src/writer/hlsl/generator_impl.cc b/src/writer/hlsl/generator_impl.cc
index fa49a4b0e0..209f94a95e 100644
--- a/src/writer/hlsl/generator_impl.cc
+++ b/src/writer/hlsl/generator_impl.cc
@@ -779,7 +779,7 @@ bool GeneratorImpl::EmitTextureCall(std::ostream& pre,
 
   auto emit_vector_appended_with_i32_zero = [&](tint::ast::Expression* vector) {
     auto* i32 = module_->create<ast::type::I32>();
-    ast::SintLiteral zero_lit(i32, 0);
+    ast::SintLiteral zero_lit(Source{}, i32, 0);
     ast::ScalarConstructorExpression zero(&zero_lit);
     zero.set_result_type(i32);
     return AppendVector(vector, &zero,
diff --git a/src/writer/hlsl/generator_impl_array_accessor_test.cc b/src/writer/hlsl/generator_impl_array_accessor_test.cc
index ddf140c9ce..d0a6885601 100644
--- a/src/writer/hlsl/generator_impl_array_accessor_test.cc
+++ b/src/writer/hlsl/generator_impl_array_accessor_test.cc
@@ -31,7 +31,7 @@ using HlslGeneratorImplTest_Expression = TestHelper;
 
 TEST_F(HlslGeneratorImplTest_Expression, EmitExpression_ArrayAccessor) {
   ast::type::I32 i32;
-  auto* lit = create<ast::SintLiteral>(&i32, 5);
+  auto* lit = create<ast::SintLiteral>(Source{}, &i32, 5);
   auto* idx = create<ast::ScalarConstructorExpression>(lit);
   auto* ary =
       create<ast::IdentifierExpression>(mod.RegisterSymbol("ary"), "ary");
diff --git a/src/writer/hlsl/generator_impl_binary_test.cc b/src/writer/hlsl/generator_impl_binary_test.cc
index 106d27954c..5ab8160fa3 100644
--- a/src/writer/hlsl/generator_impl_binary_test.cc
+++ b/src/writer/hlsl/generator_impl_binary_test.cc
@@ -193,15 +193,15 @@ TEST_F(HlslGeneratorImplTest_Binary, Multiply_VectorScalar) {
   auto* lhs = create<ast::TypeConstructorExpression>(
       &vec3, ast::ExpressionList{
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 1.f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 1.f)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 1.f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 1.f)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 1.f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 1.f)),
              });
 
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f));
 
   ast::BinaryExpression expr(ast::BinaryOp::kMultiply, lhs, rhs);
 
@@ -217,15 +217,15 @@ TEST_F(HlslGeneratorImplTest_Binary, Multiply_ScalarVector) {
   ast::type::Vector vec3(&f32, 3);
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f));
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   auto* rhs = create<ast::TypeConstructorExpression>(&vec3, vals);
 
   ast::BinaryExpression expr(ast::BinaryOp::kMultiply, lhs, rhs);
@@ -252,7 +252,7 @@ TEST_F(HlslGeneratorImplTest_Binary, Multiply_MatrixScalar) {
   auto* lhs =
       create<ast::IdentifierExpression>(mod.RegisterSymbol("mat"), "mat");
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f));
 
   td.RegisterVariableForTesting(var);
 
@@ -276,7 +276,7 @@ TEST_F(HlslGeneratorImplTest_Binary, Multiply_ScalarMatrix) {
                             nullptr,                         // constructor
                             ast::VariableDecorationList{});  // decorations
   auto* lhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f));
   auto* rhs =
       create<ast::IdentifierExpression>(mod.RegisterSymbol("mat"), "mat");
 
@@ -307,11 +307,11 @@ TEST_F(HlslGeneratorImplTest_Binary, Multiply_MatrixVector) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   auto* rhs = create<ast::TypeConstructorExpression>(&vec3, vals);
 
   td.RegisterVariableForTesting(var);
@@ -339,11 +339,11 @@ TEST_F(HlslGeneratorImplTest_Binary, Multiply_VectorMatrix) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   auto* lhs = create<ast::TypeConstructorExpression>(&vec3, vals);
 
   auto* rhs =
@@ -462,13 +462,13 @@ TEST_F(HlslGeneratorImplTest_Binary, If_WithLogical) {
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>(
       Source{}, create<ast::ScalarConstructorExpression>(
-                    create<ast::SintLiteral>(&i32, 3))));
+                    create<ast::SintLiteral>(Source{}, &i32, 3))));
   auto* else_stmt = create<ast::ElseStatement>(body);
 
   body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>(
       Source{}, create<ast::ScalarConstructorExpression>(
-                    create<ast::SintLiteral>(&i32, 2))));
+                    create<ast::SintLiteral>(Source{}, &i32, 2))));
   auto* else_if_stmt = create<ast::ElseStatement>(
       create<ast::BinaryExpression>(
           ast::BinaryOp::kLogicalOr,
@@ -479,7 +479,7 @@ TEST_F(HlslGeneratorImplTest_Binary, If_WithLogical) {
   body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>(
       Source{}, create<ast::ScalarConstructorExpression>(
-                    create<ast::SintLiteral>(&i32, 1))));
+                    create<ast::SintLiteral>(Source{}, &i32, 1))));
 
   ast::IfStatement expr(
       Source{},
diff --git a/src/writer/hlsl/generator_impl_case_test.cc b/src/writer/hlsl/generator_impl_case_test.cc
index 0efe976724..c6117bb2ca 100644
--- a/src/writer/hlsl/generator_impl_case_test.cc
+++ b/src/writer/hlsl/generator_impl_case_test.cc
@@ -37,7 +37,7 @@ TEST_F(HlslGeneratorImplTest_Case, Emit_Case) {
   body->append(create<ast::BreakStatement>());
 
   ast::CaseSelectorList lit;
-  lit.push_back(create<ast::SintLiteral>(&i32, 5));
+  lit.push_back(create<ast::SintLiteral>(Source{}, &i32, 5));
   ast::CaseStatement c(lit, body);
 
   gen.increment_indent();
@@ -53,7 +53,7 @@ TEST_F(HlslGeneratorImplTest_Case, Emit_Case_BreaksByDefault) {
   ast::type::I32 i32;
 
   ast::CaseSelectorList lit;
-  lit.push_back(create<ast::SintLiteral>(&i32, 5));
+  lit.push_back(create<ast::SintLiteral>(Source{}, &i32, 5));
   ast::CaseStatement c(lit, create<ast::BlockStatement>());
 
   gen.increment_indent();
@@ -72,7 +72,7 @@ TEST_F(HlslGeneratorImplTest_Case, Emit_Case_WithFallthrough) {
   body->append(create<ast::FallthroughStatement>());
 
   ast::CaseSelectorList lit;
-  lit.push_back(create<ast::SintLiteral>(&i32, 5));
+  lit.push_back(create<ast::SintLiteral>(Source{}, &i32, 5));
   ast::CaseStatement c(lit, body);
 
   gen.increment_indent();
@@ -91,8 +91,8 @@ TEST_F(HlslGeneratorImplTest_Case, Emit_Case_MultipleSelectors) {
   body->append(create<ast::BreakStatement>());
 
   ast::CaseSelectorList lit;
-  lit.push_back(create<ast::SintLiteral>(&i32, 5));
-  lit.push_back(create<ast::SintLiteral>(&i32, 6));
+  lit.push_back(create<ast::SintLiteral>(Source{}, &i32, 5));
+  lit.push_back(create<ast::SintLiteral>(Source{}, &i32, 6));
   ast::CaseStatement c(lit, body);
 
   gen.increment_indent();
diff --git a/src/writer/hlsl/generator_impl_constructor_test.cc b/src/writer/hlsl/generator_impl_constructor_test.cc
index 3bbdbc7d16..0cb4ba0373 100644
--- a/src/writer/hlsl/generator_impl_constructor_test.cc
+++ b/src/writer/hlsl/generator_impl_constructor_test.cc
@@ -37,7 +37,7 @@ using HlslGeneratorImplTest_Constructor = TestHelper;
 
 TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Bool) {
   ast::type::Bool bool_type;
-  auto* lit = create<ast::BoolLiteral>(&bool_type, false);
+  auto* lit = create<ast::BoolLiteral>(Source{}, &bool_type, false);
   ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(pre, out, &expr)) << gen.error();
@@ -46,7 +46,7 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Bool) {
 
 TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Int) {
   ast::type::I32 i32;
-  auto* lit = create<ast::SintLiteral>(&i32, -12345);
+  auto* lit = create<ast::SintLiteral>(Source{}, &i32, -12345);
   ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(pre, out, &expr)) << gen.error();
@@ -55,7 +55,7 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Int) {
 
 TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_UInt) {
   ast::type::U32 u32;
-  auto* lit = create<ast::UintLiteral>(&u32, 56779);
+  auto* lit = create<ast::UintLiteral>(Source{}, &u32, 56779);
   ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(pre, out, &expr)) << gen.error();
@@ -65,8 +65,8 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_UInt) {
 TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Float) {
   ast::type::F32 f32;
   // Use a number close to 1<<30 but whose decimal representation ends in 0.
-  auto* lit =
-      create<ast::FloatLiteral>(&f32, static_cast<float>((1 << 30) - 4));
+  auto* lit = create<ast::FloatLiteral>(Source{}, &f32,
+                                        static_cast<float>((1 << 30) - 4));
   ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(pre, out, &expr)) << gen.error();
@@ -76,7 +76,7 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Float) {
 TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Float) {
   ast::type::F32 f32;
 
-  auto* lit = create<ast::FloatLiteral>(&f32, -1.2e-5);
+  auto* lit = create<ast::FloatLiteral>(Source{}, &f32, -1.2e-5);
   ast::ExpressionList values;
   values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
@@ -89,7 +89,7 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Float) {
 TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Bool) {
   ast::type::Bool b;
 
-  auto* lit = create<ast::BoolLiteral>(&b, true);
+  auto* lit = create<ast::BoolLiteral>(Source{}, &b, true);
   ast::ExpressionList values;
   values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
@@ -102,7 +102,7 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Bool) {
 TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Int) {
   ast::type::I32 i32;
 
-  auto* lit = create<ast::SintLiteral>(&i32, -12345);
+  auto* lit = create<ast::SintLiteral>(Source{}, &i32, -12345);
   ast::ExpressionList values;
   values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
@@ -115,7 +115,7 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Int) {
 TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Uint) {
   ast::type::U32 u32;
 
-  auto* lit = create<ast::UintLiteral>(&u32, 12345);
+  auto* lit = create<ast::UintLiteral>(Source{}, &u32, 12345);
   ast::ExpressionList values;
   values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
@@ -129,9 +129,9 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec) {
   ast::type::F32 f32;
   ast::type::Vector vec(&f32, 3);
 
-  auto* lit1 = create<ast::FloatLiteral>(&f32, 1.f);
-  auto* lit2 = create<ast::FloatLiteral>(&f32, 2.f);
-  auto* lit3 = create<ast::FloatLiteral>(&f32, 3.f);
+  auto* lit1 = create<ast::FloatLiteral>(Source{}, &f32, 1.f);
+  auto* lit2 = create<ast::FloatLiteral>(Source{}, &f32, 2.f);
+  auto* lit3 = create<ast::FloatLiteral>(Source{}, &f32, 3.f);
   ast::ExpressionList values;
   values.push_back(create<ast::ScalarConstructorExpression>(lit1));
   values.push_back(create<ast::ScalarConstructorExpression>(lit2));
@@ -165,12 +165,12 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Mat) {
   ast::ExpressionList mat_values;
 
   for (size_t i = 0; i < 2; i++) {
-    auto* lit1 =
-        create<ast::FloatLiteral>(&f32, static_cast<float>(1 + (i * 2)));
-    auto* lit2 =
-        create<ast::FloatLiteral>(&f32, static_cast<float>(2 + (i * 2)));
-    auto* lit3 =
-        create<ast::FloatLiteral>(&f32, static_cast<float>(3 + (i * 2)));
+    auto* lit1 = create<ast::FloatLiteral>(Source{}, &f32,
+                                           static_cast<float>(1 + (i * 2)));
+    auto* lit2 = create<ast::FloatLiteral>(Source{}, &f32,
+                                           static_cast<float>(2 + (i * 2)));
+    auto* lit3 = create<ast::FloatLiteral>(Source{}, &f32,
+                                           static_cast<float>(3 + (i * 2)));
 
     ast::ExpressionList values;
     values.push_back(create<ast::ScalarConstructorExpression>(lit1));
@@ -198,12 +198,12 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Array) {
   ast::ExpressionList ary_values;
 
   for (size_t i = 0; i < 3; i++) {
-    auto* lit1 =
-        create<ast::FloatLiteral>(&f32, static_cast<float>(1 + (i * 3)));
-    auto* lit2 =
-        create<ast::FloatLiteral>(&f32, static_cast<float>(2 + (i * 3)));
-    auto* lit3 =
-        create<ast::FloatLiteral>(&f32, static_cast<float>(3 + (i * 3)));
+    auto* lit1 = create<ast::FloatLiteral>(Source{}, &f32,
+                                           static_cast<float>(1 + (i * 3)));
+    auto* lit2 = create<ast::FloatLiteral>(Source{}, &f32,
+                                           static_cast<float>(2 + (i * 3)));
+    auto* lit3 = create<ast::FloatLiteral>(Source{}, &f32,
+                                           static_cast<float>(3 + (i * 3)));
 
     ast::ExpressionList values;
     values.push_back(create<ast::ScalarConstructorExpression>(lit1));
diff --git a/src/writer/hlsl/generator_impl_function_test.cc b/src/writer/hlsl/generator_impl_function_test.cc
index f05f0f76d0..ff3bd55fea 100644
--- a/src/writer/hlsl/generator_impl_function_test.cc
+++ b/src/writer/hlsl/generator_impl_function_test.cc
@@ -606,7 +606,7 @@ TEST_F(HlslGeneratorImplTest_Function,
                                             "coord"),
           create<ast::IdentifierExpression>(mod.RegisterSymbol("b"), "b")),
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 2.0f)));
+          create<ast::FloatLiteral>(Source{}, &f32, 2.0f)));
 
   auto* body = create<ast::BlockStatement>();
   body->append(assign);
@@ -710,7 +710,7 @@ TEST_F(
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
 
   body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(
@@ -798,7 +798,7 @@ TEST_F(HlslGeneratorImplTest_Function,
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
 
   body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(
@@ -900,7 +900,7 @@ TEST_F(
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
 
   body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(
@@ -990,7 +990,7 @@ TEST_F(HlslGeneratorImplTest_Function,
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
 
   auto* var =
       create<ast::Variable>(Source{},                      // source
@@ -1082,7 +1082,7 @@ TEST_F(HlslGeneratorImplTest_Function,
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
 
   auto* var =
       create<ast::Variable>(Source{},                      // source
@@ -1150,18 +1150,19 @@ TEST_F(HlslGeneratorImplTest_Function,
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod.RegisterSymbol("bar"), "bar"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 1.0f))));
+          create<ast::FloatLiteral>(Source{}, &f32, 1.0f))));
 
   auto* list = create<ast::BlockStatement>();
   list->append(create<ast::ReturnStatement>(Source{}));
 
   body->append(create<ast::IfStatement>(
       Source{},
-      create<ast::BinaryExpression>(ast::BinaryOp::kEqual,
-                                    create<ast::ScalarConstructorExpression>(
-                                        create<ast::SintLiteral>(&i32, 1)),
-                                    create<ast::ScalarConstructorExpression>(
-                                        create<ast::SintLiteral>(&i32, 1))),
+      create<ast::BinaryExpression>(
+          ast::BinaryOp::kEqual,
+          create<ast::ScalarConstructorExpression>(
+              create<ast::SintLiteral>(Source{}, &i32, 1)),
+          create<ast::ScalarConstructorExpression>(
+              create<ast::SintLiteral>(Source{}, &i32, 1))),
       list, ast::ElseStatementList{}));
 
   body->append(create<ast::ReturnStatement>(Source{}));
diff --git a/src/writer/hlsl/generator_impl_import_test.cc b/src/writer/hlsl/generator_impl_import_test.cc
index de3e4b5387..47b1ec2067 100644
--- a/src/writer/hlsl/generator_impl_import_test.cc
+++ b/src/writer/hlsl/generator_impl_import_test.cc
@@ -54,7 +54,7 @@ TEST_P(HlslImportData_SingleParamTest, FloatScalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod.RegisterSymbol(param.name), param.name);
@@ -100,7 +100,7 @@ TEST_P(HlslImportData_SingleIntParamTest, IntScalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(
                                mod.RegisterSymbol(param.name), param.name),
@@ -122,9 +122,9 @@ TEST_P(HlslImportData_DualParamTest, FloatScalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.f)));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(
                                mod.RegisterSymbol(param.name), param.name),
@@ -155,21 +155,21 @@ TEST_P(HlslImportData_DualParam_VectorTest, FloatVector) {
   params.push_back(create<ast::TypeConstructorExpression>(
       &vec, ast::ExpressionList{
                 create<ast::ScalarConstructorExpression>(
-                    create<ast::FloatLiteral>(&f32, 1.f)),
+                    create<ast::FloatLiteral>(Source{}, &f32, 1.f)),
                 create<ast::ScalarConstructorExpression>(
-                    create<ast::FloatLiteral>(&f32, 2.f)),
+                    create<ast::FloatLiteral>(Source{}, &f32, 2.f)),
                 create<ast::ScalarConstructorExpression>(
-                    create<ast::FloatLiteral>(&f32, 3.f)),
+                    create<ast::FloatLiteral>(Source{}, &f32, 3.f)),
             }));
 
   params.push_back(create<ast::TypeConstructorExpression>(
       &vec, ast::ExpressionList{
                 create<ast::ScalarConstructorExpression>(
-                    create<ast::FloatLiteral>(&f32, 4.f)),
+                    create<ast::FloatLiteral>(Source{}, &f32, 4.f)),
                 create<ast::ScalarConstructorExpression>(
-                    create<ast::FloatLiteral>(&f32, 5.f)),
+                    create<ast::FloatLiteral>(Source{}, &f32, 5.f)),
                 create<ast::ScalarConstructorExpression>(
-                    create<ast::FloatLiteral>(&f32, 6.f)),
+                    create<ast::FloatLiteral>(Source{}, &f32, 6.f)),
             }));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(
@@ -194,9 +194,9 @@ TEST_P(HlslImportData_DualParam_Int_Test, IntScalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2)));
+      create<ast::SintLiteral>(Source{}, &i32, 2)));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(
                                mod.RegisterSymbol(param.name), param.name),
@@ -219,11 +219,11 @@ TEST_P(HlslImportData_TripleParamTest, FloatScalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.f)));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(
                                mod.RegisterSymbol(param.name), param.name),
@@ -253,11 +253,11 @@ TEST_P(HlslImportData_TripleParam_Int_Test, IntScalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2)));
+      create<ast::SintLiteral>(Source{}, &i32, 2)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 3)));
+      create<ast::SintLiteral>(Source{}, &i32, 3)));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(
                                mod.RegisterSymbol(param.name), param.name),
diff --git a/src/writer/hlsl/generator_impl_loop_test.cc b/src/writer/hlsl/generator_impl_loop_test.cc
index b06f1bc81b..25b4a63fda 100644
--- a/src/writer/hlsl/generator_impl_loop_test.cc
+++ b/src/writer/hlsl/generator_impl_loop_test.cc
@@ -153,8 +153,8 @@ TEST_F(HlslGeneratorImplTest_Loop, Emit_LoopWithVarUsedInContinuing) {
       &f32,                          // type
       false,                         // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 2.4)),  // constructor
-      ast::VariableDecorationList{});             // decorations
+          create<ast::FloatLiteral>(Source{}, &f32, 2.4)),  // constructor
+      ast::VariableDecorationList{});                       // decorations
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::VariableDeclStatement>(var));
diff --git a/src/writer/hlsl/generator_impl_member_accessor_test.cc b/src/writer/hlsl/generator_impl_member_accessor_test.cc
index 8bbc18ee6d..055b6795b9 100644
--- a/src/writer/hlsl/generator_impl_member_accessor_test.cc
+++ b/src/writer/hlsl/generator_impl_member_accessor_test.cc
@@ -519,9 +519,9 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
                                                 "data"),
               create<ast::IdentifierExpression>(mod.RegisterSymbol("a"), "a")),
           create<ast::ScalarConstructorExpression>(
-              create<ast::SintLiteral>(&i32, 2))),
+              create<ast::SintLiteral>(Source{}, &i32, 2))),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 1)));
+          create<ast::SintLiteral>(Source{}, &i32, 1)));
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
@@ -573,7 +573,7 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
           create<ast::IdentifierExpression>(mod.RegisterSymbol("data"), "data"),
           create<ast::IdentifierExpression>(mod.RegisterSymbol("a"), "a")),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2)));
+          create<ast::SintLiteral>(Source{}, &i32, 2)));
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
@@ -629,11 +629,11 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
           create<ast::BinaryExpression>(
               ast::BinaryOp::kAdd,
               create<ast::ScalarConstructorExpression>(
-                  create<ast::SintLiteral>(&i32, 2)),
+                  create<ast::SintLiteral>(Source{}, &i32, 2)),
               create<ast::ScalarConstructorExpression>(
-                  create<ast::SintLiteral>(&i32, 4))),
+                  create<ast::SintLiteral>(Source{}, &i32, 4))),
           create<ast::ScalarConstructorExpression>(
-              create<ast::SintLiteral>(&i32, 3))));
+              create<ast::SintLiteral>(Source{}, &i32, 3))));
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
@@ -692,7 +692,7 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
       create<ast::IdentifierExpression>(mod.RegisterSymbol("data"), "data"),
       create<ast::IdentifierExpression>(mod.RegisterSymbol("b"), "b"));
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.0f));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.0f));
   ast::AssignmentStatement assign(lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&assign));
@@ -747,9 +747,9 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
           create<ast::IdentifierExpression>(mod.RegisterSymbol("data"), "data"),
           create<ast::IdentifierExpression>(mod.RegisterSymbol("a"), "a")),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2)));
+          create<ast::SintLiteral>(Source{}, &i32, 2)));
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
   ast::AssignmentStatement assign(lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&assign)) << td.error();
@@ -804,7 +804,7 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
       create<ast::IdentifierExpression>(mod.RegisterSymbol("data"), "data"),
       create<ast::IdentifierExpression>(mod.RegisterSymbol("a"), "a"));
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2));
+      create<ast::SintLiteral>(Source{}, &i32, 2));
   ast::AssignmentStatement assign(lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&assign));
@@ -910,9 +910,9 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
-  auto* lit1 = create<ast::FloatLiteral>(&f32, 1.f);
-  auto* lit2 = create<ast::FloatLiteral>(&f32, 2.f);
-  auto* lit3 = create<ast::FloatLiteral>(&f32, 3.f);
+  auto* lit1 = create<ast::FloatLiteral>(Source{}, &f32, 1.f);
+  auto* lit2 = create<ast::FloatLiteral>(Source{}, &f32, 2.f);
+  auto* lit3 = create<ast::FloatLiteral>(Source{}, &f32, 3.f);
   ast::ExpressionList values;
   values.push_back(create<ast::ScalarConstructorExpression>(lit1));
   values.push_back(create<ast::ScalarConstructorExpression>(lit2));
@@ -1001,7 +1001,7 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
                                                 "data"),
               create<ast::IdentifierExpression>(mod.RegisterSymbol("c"), "c")),
           create<ast::ScalarConstructorExpression>(
-              create<ast::SintLiteral>(&i32, 2))),
+              create<ast::SintLiteral>(Source{}, &i32, 2))),
       create<ast::IdentifierExpression>(mod.RegisterSymbol("b"), "b"));
 
   ASSERT_TRUE(td.DetermineResultType(&expr));
@@ -1081,7 +1081,7 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
                   create<ast::IdentifierExpression>(mod.RegisterSymbol("c"),
                                                     "c")),
               create<ast::ScalarConstructorExpression>(
-                  create<ast::SintLiteral>(&i32, 2))),
+                  create<ast::SintLiteral>(Source{}, &i32, 2))),
           create<ast::IdentifierExpression>(mod.RegisterSymbol("b"), "b")),
       create<ast::IdentifierExpression>(mod.RegisterSymbol("xy"), "xy"));
 
@@ -1161,7 +1161,7 @@ TEST_F(
                   create<ast::IdentifierExpression>(mod.RegisterSymbol("c"),
                                                     "c")),
               create<ast::ScalarConstructorExpression>(
-                  create<ast::SintLiteral>(&i32, 2))),
+                  create<ast::SintLiteral>(Source{}, &i32, 2))),
           create<ast::IdentifierExpression>(mod.RegisterSymbol("b"), "b")),
       create<ast::IdentifierExpression>(mod.RegisterSymbol("g"), "g"));
 
@@ -1240,10 +1240,10 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
                   create<ast::IdentifierExpression>(mod.RegisterSymbol("c"),
                                                     "c")),
               create<ast::ScalarConstructorExpression>(
-                  create<ast::SintLiteral>(&i32, 2))),
+                  create<ast::SintLiteral>(Source{}, &i32, 2))),
           create<ast::IdentifierExpression>(mod.RegisterSymbol("b"), "b")),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 1)));
+          create<ast::SintLiteral>(Source{}, &i32, 1)));
 
   ASSERT_TRUE(td.DetermineResultType(&expr));
   ASSERT_TRUE(gen.EmitExpression(pre, out, &expr)) << gen.error();
@@ -1318,12 +1318,12 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
                                                 "data"),
               create<ast::IdentifierExpression>(mod.RegisterSymbol("c"), "c")),
           create<ast::ScalarConstructorExpression>(
-              create<ast::SintLiteral>(&i32, 2))),
+              create<ast::SintLiteral>(Source{}, &i32, 2))),
       create<ast::IdentifierExpression>(mod.RegisterSymbol("b"), "b"));
 
-  auto* lit1 = create<ast::FloatLiteral>(&f32, 1.f);
-  auto* lit2 = create<ast::FloatLiteral>(&f32, 2.f);
-  auto* lit3 = create<ast::FloatLiteral>(&f32, 3.f);
+  auto* lit1 = create<ast::FloatLiteral>(Source{}, &f32, 1.f);
+  auto* lit2 = create<ast::FloatLiteral>(Source{}, &f32, 2.f);
+  auto* lit3 = create<ast::FloatLiteral>(Source{}, &f32, 3.f);
   ast::ExpressionList values;
   values.push_back(create<ast::ScalarConstructorExpression>(lit1));
   values.push_back(create<ast::ScalarConstructorExpression>(lit2));
@@ -1410,12 +1410,12 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
                   create<ast::IdentifierExpression>(mod.RegisterSymbol("c"),
                                                     "c")),
               create<ast::ScalarConstructorExpression>(
-                  create<ast::SintLiteral>(&i32, 2))),
+                  create<ast::SintLiteral>(Source{}, &i32, 2))),
           create<ast::IdentifierExpression>(mod.RegisterSymbol("b"), "b")),
       create<ast::IdentifierExpression>(mod.RegisterSymbol("y"), "y"));
 
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&i32, 1.f));
+      create<ast::FloatLiteral>(Source{}, &i32, 1.f));
 
   ast::AssignmentStatement assign(lhs, rhs);
 
diff --git a/src/writer/hlsl/generator_impl_module_constant_test.cc b/src/writer/hlsl/generator_impl_module_constant_test.cc
index c98882f478..cae5bd3a1d 100644
--- a/src/writer/hlsl/generator_impl_module_constant_test.cc
+++ b/src/writer/hlsl/generator_impl_module_constant_test.cc
@@ -38,11 +38,11 @@ TEST_F(HlslGeneratorImplTest_ModuleConstant, Emit_ModuleConstant) {
 
   ast::ExpressionList exprs;
   exprs.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   exprs.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.0f)));
   exprs.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   auto* var = create<ast::Variable>(
       Source{},                                             // source
@@ -67,7 +67,7 @@ TEST_F(HlslGeneratorImplTest_ModuleConstant, Emit_SpecConstant) {
       &f32,                      // type
       true,                      // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 3.0f)),  // constructor
+          create<ast::FloatLiteral>(Source{}, &f32, 3.0f)),  // constructor
       ast::VariableDecorationList{
           // decorations
           create<ast::ConstantIdDecoration>(23, Source{}),
diff --git a/src/writer/hlsl/generator_impl_switch_test.cc b/src/writer/hlsl/generator_impl_switch_test.cc
index 7e8ef38a75..9456dfffec 100644
--- a/src/writer/hlsl/generator_impl_switch_test.cc
+++ b/src/writer/hlsl/generator_impl_switch_test.cc
@@ -37,7 +37,7 @@ TEST_F(HlslGeneratorImplTest_Switch, Emit_Switch) {
 
   ast::type::I32 i32;
   ast::CaseSelectorList case_val;
-  case_val.push_back(create<ast::SintLiteral>(&i32, 5));
+  case_val.push_back(create<ast::SintLiteral>(Source{}, &i32, 5));
 
   auto* case_body = create<ast::BlockStatement>();
   case_body->append(create<ast::BreakStatement>());
diff --git a/src/writer/msl/generator_impl_array_accessor_test.cc b/src/writer/msl/generator_impl_array_accessor_test.cc
index 156077358c..41da25934a 100644
--- a/src/writer/msl/generator_impl_array_accessor_test.cc
+++ b/src/writer/msl/generator_impl_array_accessor_test.cc
@@ -33,7 +33,7 @@ using MslGeneratorImplTest = TestHelper;
 
 TEST_F(MslGeneratorImplTest, EmitExpression_ArrayAccessor) {
   ast::type::I32 i32;
-  auto* lit = create<ast::SintLiteral>(&i32, 5);
+  auto* lit = create<ast::SintLiteral>(Source{}, &i32, 5);
   auto* idx = create<ast::ScalarConstructorExpression>(lit);
   auto* ary =
       create<ast::IdentifierExpression>(mod.RegisterSymbol("ary"), "ary");
diff --git a/src/writer/msl/generator_impl_case_test.cc b/src/writer/msl/generator_impl_case_test.cc
index e8e2244733..5740d2add4 100644
--- a/src/writer/msl/generator_impl_case_test.cc
+++ b/src/writer/msl/generator_impl_case_test.cc
@@ -39,7 +39,7 @@ TEST_F(MslGeneratorImplTest, Emit_Case) {
   body->append(create<ast::BreakStatement>());
 
   ast::CaseSelectorList lit;
-  lit.push_back(create<ast::SintLiteral>(&i32, 5));
+  lit.push_back(create<ast::SintLiteral>(Source{}, &i32, 5));
   ast::CaseStatement c(lit, body);
 
   gen.increment_indent();
@@ -55,7 +55,7 @@ TEST_F(MslGeneratorImplTest, Emit_Case_BreaksByDefault) {
   ast::type::I32 i32;
 
   ast::CaseSelectorList lit;
-  lit.push_back(create<ast::SintLiteral>(&i32, 5));
+  lit.push_back(create<ast::SintLiteral>(Source{}, &i32, 5));
   ast::CaseStatement c(lit, create<ast::BlockStatement>());
 
   gen.increment_indent();
@@ -74,7 +74,7 @@ TEST_F(MslGeneratorImplTest, Emit_Case_WithFallthrough) {
   body->append(create<ast::FallthroughStatement>());
 
   ast::CaseSelectorList lit;
-  lit.push_back(create<ast::SintLiteral>(&i32, 5));
+  lit.push_back(create<ast::SintLiteral>(Source{}, &i32, 5));
   ast::CaseStatement c(lit, body);
 
   gen.increment_indent();
@@ -93,8 +93,8 @@ TEST_F(MslGeneratorImplTest, Emit_Case_MultipleSelectors) {
   body->append(create<ast::BreakStatement>());
 
   ast::CaseSelectorList lit;
-  lit.push_back(create<ast::SintLiteral>(&i32, 5));
-  lit.push_back(create<ast::SintLiteral>(&i32, 6));
+  lit.push_back(create<ast::SintLiteral>(Source{}, &i32, 5));
+  lit.push_back(create<ast::SintLiteral>(Source{}, &i32, 6));
   ast::CaseStatement c(lit, body);
 
   gen.increment_indent();
diff --git a/src/writer/msl/generator_impl_constructor_test.cc b/src/writer/msl/generator_impl_constructor_test.cc
index cd83117405..0f50308ecc 100644
--- a/src/writer/msl/generator_impl_constructor_test.cc
+++ b/src/writer/msl/generator_impl_constructor_test.cc
@@ -39,7 +39,7 @@ using MslGeneratorImplTest = TestHelper;
 
 TEST_F(MslGeneratorImplTest, EmitConstructor_Bool) {
   ast::type::Bool bool_type;
-  auto* lit = create<ast::BoolLiteral>(&bool_type, false);
+  auto* lit = create<ast::BoolLiteral>(Source{}, &bool_type, false);
   ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
@@ -48,7 +48,7 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_Bool) {
 
 TEST_F(MslGeneratorImplTest, EmitConstructor_Int) {
   ast::type::I32 i32;
-  auto* lit = create<ast::SintLiteral>(&i32, -12345);
+  auto* lit = create<ast::SintLiteral>(Source{}, &i32, -12345);
   ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
@@ -57,7 +57,7 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_Int) {
 
 TEST_F(MslGeneratorImplTest, EmitConstructor_UInt) {
   ast::type::U32 u32;
-  auto* lit = create<ast::UintLiteral>(&u32, 56779);
+  auto* lit = create<ast::UintLiteral>(Source{}, &u32, 56779);
   ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
@@ -67,8 +67,8 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_UInt) {
 TEST_F(MslGeneratorImplTest, EmitConstructor_Float) {
   ast::type::F32 f32;
   // Use a number close to 1<<30 but whose decimal representation ends in 0.
-  auto* lit =
-      create<ast::FloatLiteral>(&f32, static_cast<float>((1 << 30) - 4));
+  auto* lit = create<ast::FloatLiteral>(Source{}, &f32,
+                                        static_cast<float>((1 << 30) - 4));
   ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
@@ -78,7 +78,7 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_Float) {
 TEST_F(MslGeneratorImplTest, EmitConstructor_Type_Float) {
   ast::type::F32 f32;
 
-  auto* lit = create<ast::FloatLiteral>(&f32, -1.2e-5);
+  auto* lit = create<ast::FloatLiteral>(Source{}, &f32, -1.2e-5);
   ast::ExpressionList values;
   values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
@@ -91,7 +91,7 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_Type_Float) {
 TEST_F(MslGeneratorImplTest, EmitConstructor_Type_Bool) {
   ast::type::Bool b;
 
-  auto* lit = create<ast::BoolLiteral>(&b, true);
+  auto* lit = create<ast::BoolLiteral>(Source{}, &b, true);
   ast::ExpressionList values;
   values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
@@ -104,7 +104,7 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_Type_Bool) {
 TEST_F(MslGeneratorImplTest, EmitConstructor_Type_Int) {
   ast::type::I32 i32;
 
-  auto* lit = create<ast::SintLiteral>(&i32, -12345);
+  auto* lit = create<ast::SintLiteral>(Source{}, &i32, -12345);
   ast::ExpressionList values;
   values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
@@ -117,7 +117,7 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_Type_Int) {
 TEST_F(MslGeneratorImplTest, EmitConstructor_Type_Uint) {
   ast::type::U32 u32;
 
-  auto* lit = create<ast::UintLiteral>(&u32, 12345);
+  auto* lit = create<ast::UintLiteral>(Source{}, &u32, 12345);
   ast::ExpressionList values;
   values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
@@ -131,9 +131,9 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_Type_Vec) {
   ast::type::F32 f32;
   ast::type::Vector vec(&f32, 3);
 
-  auto* lit1 = create<ast::FloatLiteral>(&f32, 1.f);
-  auto* lit2 = create<ast::FloatLiteral>(&f32, 2.f);
-  auto* lit3 = create<ast::FloatLiteral>(&f32, 3.f);
+  auto* lit1 = create<ast::FloatLiteral>(Source{}, &f32, 1.f);
+  auto* lit2 = create<ast::FloatLiteral>(Source{}, &f32, 2.f);
+  auto* lit3 = create<ast::FloatLiteral>(Source{}, &f32, 3.f);
   ast::ExpressionList values;
   values.push_back(create<ast::ScalarConstructorExpression>(lit1));
   values.push_back(create<ast::ScalarConstructorExpression>(lit2));
@@ -167,12 +167,12 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_Type_Mat) {
   ast::ExpressionList mat_values;
 
   for (size_t i = 0; i < 2; i++) {
-    auto* lit1 =
-        create<ast::FloatLiteral>(&f32, static_cast<float>(1 + (i * 2)));
-    auto* lit2 =
-        create<ast::FloatLiteral>(&f32, static_cast<float>(2 + (i * 2)));
-    auto* lit3 =
-        create<ast::FloatLiteral>(&f32, static_cast<float>(3 + (i * 2)));
+    auto* lit1 = create<ast::FloatLiteral>(Source{}, &f32,
+                                           static_cast<float>(1 + (i * 2)));
+    auto* lit2 = create<ast::FloatLiteral>(Source{}, &f32,
+                                           static_cast<float>(2 + (i * 2)));
+    auto* lit3 = create<ast::FloatLiteral>(Source{}, &f32,
+                                           static_cast<float>(3 + (i * 2)));
 
     ast::ExpressionList values;
     values.push_back(create<ast::ScalarConstructorExpression>(lit1));
@@ -199,12 +199,12 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_Type_Array) {
   ast::ExpressionList ary_values;
 
   for (size_t i = 0; i < 3; i++) {
-    auto* lit1 =
-        create<ast::FloatLiteral>(&f32, static_cast<float>(1 + (i * 3)));
-    auto* lit2 =
-        create<ast::FloatLiteral>(&f32, static_cast<float>(2 + (i * 3)));
-    auto* lit3 =
-        create<ast::FloatLiteral>(&f32, static_cast<float>(3 + (i * 3)));
+    auto* lit1 = create<ast::FloatLiteral>(Source{}, &f32,
+                                           static_cast<float>(1 + (i * 3)));
+    auto* lit2 = create<ast::FloatLiteral>(Source{}, &f32,
+                                           static_cast<float>(2 + (i * 3)));
+    auto* lit3 = create<ast::FloatLiteral>(Source{}, &f32,
+                                           static_cast<float>(3 + (i * 3)));
 
     ast::ExpressionList values;
     values.push_back(create<ast::ScalarConstructorExpression>(lit1));
diff --git a/src/writer/msl/generator_impl_function_test.cc b/src/writer/msl/generator_impl_function_test.cc
index 680441faae..d7cd5f1207 100644
--- a/src/writer/msl/generator_impl_function_test.cc
+++ b/src/writer/msl/generator_impl_function_test.cc
@@ -594,7 +594,7 @@ TEST_F(
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
 
   body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(
@@ -685,7 +685,7 @@ TEST_F(MslGeneratorImplTest,
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
 
   body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(
@@ -791,7 +791,7 @@ TEST_F(
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
 
   body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(
@@ -879,7 +879,7 @@ TEST_F(MslGeneratorImplTest,
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
 
   auto* var =
       create<ast::Variable>(Source{},                      // source
@@ -985,7 +985,7 @@ TEST_F(MslGeneratorImplTest,
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
 
   auto* var =
       create<ast::Variable>(Source{},                      // source
@@ -1097,7 +1097,7 @@ TEST_F(MslGeneratorImplTest,
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
 
   auto* var =
       create<ast::Variable>(Source{},                      // source
@@ -1172,18 +1172,19 @@ TEST_F(MslGeneratorImplTest,
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod.RegisterSymbol("bar"), "bar"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 1.0f))));
+          create<ast::FloatLiteral>(Source{}, &f32, 1.0f))));
 
   auto* list = create<ast::BlockStatement>();
   list->append(create<ast::ReturnStatement>(Source{}));
 
   body->append(create<ast::IfStatement>(
       Source{},
-      create<ast::BinaryExpression>(ast::BinaryOp::kEqual,
-                                    create<ast::ScalarConstructorExpression>(
-                                        create<ast::SintLiteral>(&i32, 1)),
-                                    create<ast::ScalarConstructorExpression>(
-                                        create<ast::SintLiteral>(&i32, 1))),
+      create<ast::BinaryExpression>(
+          ast::BinaryOp::kEqual,
+          create<ast::ScalarConstructorExpression>(
+              create<ast::SintLiteral>(Source{}, &i32, 1)),
+          create<ast::ScalarConstructorExpression>(
+              create<ast::SintLiteral>(Source{}, &i32, 1))),
       list, ast::ElseStatementList{}));
 
   body->append(create<ast::ReturnStatement>(Source{}));
diff --git a/src/writer/msl/generator_impl_import_test.cc b/src/writer/msl/generator_impl_import_test.cc
index d543348bb3..1d654c2b23 100644
--- a/src/writer/msl/generator_impl_import_test.cc
+++ b/src/writer/msl/generator_impl_import_test.cc
@@ -55,7 +55,7 @@ TEST_P(MslImportData_SingleParamTest, FloatScalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(
       mod.RegisterSymbol(param.name), param.name);
@@ -99,7 +99,7 @@ TEST_F(MslGeneratorImplTest, MslImportData_SingleParamTest_IntScalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
 
   ast::CallExpression expr(
       create<ast::IdentifierExpression>(mod.RegisterSymbol("abs"), "abs"),
@@ -119,9 +119,9 @@ TEST_P(MslImportData_DualParamTest, FloatScalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.f)));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(
                                mod.RegisterSymbol(param.name), param.name),
@@ -155,21 +155,21 @@ TEST_P(MslImportData_DualParam_VectorTest, FloatVector) {
   params.push_back(create<ast::TypeConstructorExpression>(
       &vec, ast::ExpressionList{
                 create<ast::ScalarConstructorExpression>(
-                    create<ast::FloatLiteral>(&f32, 1.f)),
+                    create<ast::FloatLiteral>(Source{}, &f32, 1.f)),
                 create<ast::ScalarConstructorExpression>(
-                    create<ast::FloatLiteral>(&f32, 2.f)),
+                    create<ast::FloatLiteral>(Source{}, &f32, 2.f)),
                 create<ast::ScalarConstructorExpression>(
-                    create<ast::FloatLiteral>(&f32, 3.f)),
+                    create<ast::FloatLiteral>(Source{}, &f32, 3.f)),
             }));
 
   params.push_back(create<ast::TypeConstructorExpression>(
       &vec, ast::ExpressionList{
                 create<ast::ScalarConstructorExpression>(
-                    create<ast::FloatLiteral>(&f32, 4.f)),
+                    create<ast::FloatLiteral>(Source{}, &f32, 4.f)),
                 create<ast::ScalarConstructorExpression>(
-                    create<ast::FloatLiteral>(&f32, 5.f)),
+                    create<ast::FloatLiteral>(Source{}, &f32, 5.f)),
                 create<ast::ScalarConstructorExpression>(
-                    create<ast::FloatLiteral>(&f32, 6.f)),
+                    create<ast::FloatLiteral>(Source{}, &f32, 6.f)),
             }));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(
@@ -194,9 +194,9 @@ TEST_P(MslImportData_DualParam_Int_Test, IntScalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2)));
+      create<ast::SintLiteral>(Source{}, &i32, 2)));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(
                                mod.RegisterSymbol(param.name), param.name),
@@ -219,11 +219,11 @@ TEST_P(MslImportData_TripleParamTest, FloatScalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.f)));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(
                                mod.RegisterSymbol(param.name), param.name),
@@ -251,11 +251,11 @@ TEST_P(MslImportData_TripleParam_Int_Test, IntScalar) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
+      create<ast::SintLiteral>(Source{}, &i32, 1)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 2)));
+      create<ast::SintLiteral>(Source{}, &i32, 2)));
   params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 3)));
+      create<ast::SintLiteral>(Source{}, &i32, 3)));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(
                                mod.RegisterSymbol(param.name), param.name),
diff --git a/src/writer/msl/generator_impl_loop_test.cc b/src/writer/msl/generator_impl_loop_test.cc
index b6c91fdf9d..004af071a6 100644
--- a/src/writer/msl/generator_impl_loop_test.cc
+++ b/src/writer/msl/generator_impl_loop_test.cc
@@ -158,8 +158,8 @@ TEST_F(MslGeneratorImplTest, Emit_LoopWithVarUsedInContinuing) {
       &f32,                          // type
       false,                         // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 2.4)),  // constructor
-      ast::VariableDecorationList{});             // decorations
+          create<ast::FloatLiteral>(Source{}, &f32, 2.4)),  // constructor
+      ast::VariableDecorationList{});                       // decorations
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::VariableDeclStatement>(var));
diff --git a/src/writer/msl/generator_impl_module_constant_test.cc b/src/writer/msl/generator_impl_module_constant_test.cc
index efe5ee0691..980beeae82 100644
--- a/src/writer/msl/generator_impl_module_constant_test.cc
+++ b/src/writer/msl/generator_impl_module_constant_test.cc
@@ -40,11 +40,11 @@ TEST_F(MslGeneratorImplTest, Emit_ModuleConstant) {
 
   ast::ExpressionList exprs;
   exprs.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   exprs.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.0f)));
   exprs.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   auto* var = create<ast::Variable>(
       Source{},                                             // source
@@ -69,7 +69,7 @@ TEST_F(MslGeneratorImplTest, Emit_SpecConstant) {
       &f32,                      // type
       true,                      // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 3.0f)),  // constructor
+          create<ast::FloatLiteral>(Source{}, &f32, 3.0f)),  // constructor
       ast::VariableDecorationList{
           // decorations
           create<ast::ConstantIdDecoration>(23, Source{}),
diff --git a/src/writer/msl/generator_impl_switch_test.cc b/src/writer/msl/generator_impl_switch_test.cc
index fd69599ce3..06173747c3 100644
--- a/src/writer/msl/generator_impl_switch_test.cc
+++ b/src/writer/msl/generator_impl_switch_test.cc
@@ -39,7 +39,7 @@ TEST_F(MslGeneratorImplTest, Emit_Switch) {
 
   ast::type::I32 i32;
   ast::CaseSelectorList case_val;
-  case_val.push_back(create<ast::SintLiteral>(&i32, 5));
+  case_val.push_back(create<ast::SintLiteral>(Source{}, &i32, 5));
 
   auto* case_body = create<ast::BlockStatement>();
   case_body->append(create<ast::BreakStatement>());
diff --git a/src/writer/spirv/builder.cc b/src/writer/spirv/builder.cc
index 244844e60e..2143b579af 100644
--- a/src/writer/spirv/builder.cc
+++ b/src/writer/spirv/builder.cc
@@ -376,7 +376,7 @@ void Builder::GenerateLabel(uint32_t id) {
 
 uint32_t Builder::GenerateU32Literal(uint32_t val) {
   ast::type::U32 u32;
-  ast::SintLiteral lit(&u32, val);
+  ast::SintLiteral lit(Source{}, &u32, val);
   return GenerateLiteralIfNeeded(nullptr, &lit);
 }
 
@@ -640,7 +640,7 @@ bool Builder::GenerateFunctionVariable(ast::Variable* var) {
 
   // TODO(dsinclair) We could detect if the constructor is fully const and emit
   // an initializer value for the variable instead of doing the OpLoad.
-  ast::NullLiteral nl(var->type()->UnwrapPtrIfNeeded());
+  ast::NullLiteral nl(Source{}, var->type()->UnwrapPtrIfNeeded());
   auto null_id = GenerateLiteralIfNeeded(var, &nl);
   if (null_id == 0) {
     return 0;
@@ -741,16 +741,16 @@ bool Builder::GenerateGlobalVariable(ast::Variable* var) {
     //    then WGSL requires an initializer.
     if (var->HasConstantIdDecoration()) {
       if (type->Is<ast::type::F32>()) {
-        ast::FloatLiteral l(type, 0.0f);
+        ast::FloatLiteral l(Source{}, type, 0.0f);
         init_id = GenerateLiteralIfNeeded(var, &l);
       } else if (type->Is<ast::type::U32>()) {
-        ast::UintLiteral l(type, 0);
+        ast::UintLiteral l(Source{}, type, 0);
         init_id = GenerateLiteralIfNeeded(var, &l);
       } else if (type->Is<ast::type::I32>()) {
-        ast::SintLiteral l(type, 0);
+        ast::SintLiteral l(Source{}, type, 0);
         init_id = GenerateLiteralIfNeeded(var, &l);
       } else if (type->Is<ast::type::Bool>()) {
-        ast::BoolLiteral l(type, false);
+        ast::BoolLiteral l(Source{}, type, false);
         init_id = GenerateLiteralIfNeeded(var, &l);
       } else {
         error_ = "invalid type for constant_id, must be scalar";
@@ -763,7 +763,7 @@ bool Builder::GenerateGlobalVariable(ast::Variable* var) {
     } else if (var->storage_class() == ast::StorageClass::kPrivate ||
                var->storage_class() == ast::StorageClass::kNone ||
                var->storage_class() == ast::StorageClass::kOutput) {
-      ast::NullLiteral nl(type);
+      ast::NullLiteral nl(Source{}, type);
       init_id = GenerateLiteralIfNeeded(var, &nl);
       if (init_id == 0) {
         return 0;
@@ -1015,7 +1015,7 @@ uint32_t Builder::GenerateAccessorExpression(ast::Expression* expr) {
 
       auto ary_result = result_op();
 
-      ast::NullLiteral nl(ary_res_type);
+      ast::NullLiteral nl(Source{}, ary_res_type);
       auto init = GenerateLiteralIfNeeded(nullptr, &nl);
 
       // If we're access chaining into an array then we must be in a function
@@ -1220,7 +1220,7 @@ uint32_t Builder::GenerateTypeConstructorExpression(
 
   // Generate the zero initializer if there are no values provided.
   if (values.empty()) {
-    ast::NullLiteral nl(init->type()->UnwrapPtrIfNeeded());
+    ast::NullLiteral nl(Source{}, init->type()->UnwrapPtrIfNeeded());
     return GenerateLiteralIfNeeded(nullptr, &nl);
   }
 
@@ -2053,7 +2053,7 @@ void Builder::GenerateTextureIntrinsic(ast::IdentifierExpression* ident,
       spirv_params.emplace_back(gen_param(pidx.depth_ref));
 
       ast::type::F32 f32;
-      ast::FloatLiteral float_0(&f32, 0.0);
+      ast::FloatLiteral float_0(Source{}, &f32, 0.0);
       image_operands.emplace_back(ImageOperand{
           SpvImageOperandsLodMask,
           Operand::Int(GenerateLiteralIfNeeded(nullptr, &float_0))});
diff --git a/src/writer/spirv/builder_accessor_expression_test.cc b/src/writer/spirv/builder_accessor_expression_test.cc
index 32be7051cc..157e0cdf7a 100644
--- a/src/writer/spirv/builder_accessor_expression_test.cc
+++ b/src/writer/spirv/builder_accessor_expression_test.cc
@@ -59,7 +59,7 @@ TEST_F(BuilderTest, ArrayAccessor) {
   auto* ary =
       create<ast::IdentifierExpression>(mod->RegisterSymbol("ary"), "ary");
   auto* idx_expr = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1));
+      create<ast::SintLiteral>(Source{}, &i32, 1));
 
   ast::ArrayAccessorExpression expr(ary, idx_expr);
 
@@ -152,12 +152,12 @@ TEST_F(BuilderTest, ArrayAccessor_Dynamic) {
       create<ast::IdentifierExpression>(mod->RegisterSymbol("ary"), "ary");
 
   ast::ArrayAccessorExpression expr(
-      ary,
-      create<ast::BinaryExpression>(ast::BinaryOp::kAdd,
-                                    create<ast::ScalarConstructorExpression>(
-                                        create<ast::SintLiteral>(&i32, 1)),
-                                    create<ast::ScalarConstructorExpression>(
-                                        create<ast::SintLiteral>(&i32, 2))));
+      ary, create<ast::BinaryExpression>(
+               ast::BinaryOp::kAdd,
+               create<ast::ScalarConstructorExpression>(
+                   create<ast::SintLiteral>(Source{}, &i32, 1)),
+               create<ast::ScalarConstructorExpression>(
+                   create<ast::SintLiteral>(Source{}, &i32, 2))));
 
   td.RegisterVariableForTesting(&var);
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
@@ -201,9 +201,9 @@ TEST_F(BuilderTest, ArrayAccessor_MultiLevel) {
       create<ast::ArrayAccessorExpression>(
           create<ast::IdentifierExpression>(mod->RegisterSymbol("ary"), "ary"),
           create<ast::ScalarConstructorExpression>(
-              create<ast::SintLiteral>(&i32, 3))),
+              create<ast::SintLiteral>(Source{}, &i32, 3))),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2)));
+          create<ast::SintLiteral>(Source{}, &i32, 2)));
 
   td.RegisterVariableForTesting(&var);
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
@@ -249,7 +249,7 @@ TEST_F(BuilderTest, Accessor_ArrayWithSwizzle) {
       create<ast::ArrayAccessorExpression>(
           create<ast::IdentifierExpression>(mod->RegisterSymbol("ary"), "ary"),
           create<ast::ScalarConstructorExpression>(
-              create<ast::SintLiteral>(&i32, 2))),
+              create<ast::SintLiteral>(Source{}, &i32, 2))),
       create<ast::IdentifierExpression>(mod->RegisterSymbol("xy"), "xy"));
 
   td.RegisterVariableForTesting(&var);
@@ -492,7 +492,7 @@ TEST_F(BuilderTest, MemberAccessor_Nested_Assignment_LHS) {
       create<ast::IdentifierExpression>(mod->RegisterSymbol("a"), "a"));
 
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.f));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.f));
 
   ast::AssignmentStatement expr(lhs, rhs);
 
@@ -766,7 +766,7 @@ TEST_F(BuilderTest, MemberAccessor_Array_of_Swizzle) {
                                             "ident"),
           create<ast::IdentifierExpression>(mod->RegisterSymbol("yxz"), "yxz")),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 1)));
+          create<ast::SintLiteral>(Source{}, &i32, 1)));
 
   td.RegisterVariableForTesting(&var);
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
@@ -840,11 +840,11 @@ TEST_F(BuilderTest, Accessor_Mixed_ArrayAndMember) {
                           create<ast::IdentifierExpression>(
                               mod->RegisterSymbol("index"), "index"),
                           create<ast::ScalarConstructorExpression>(
-                              create<ast::SintLiteral>(&i32, 0))),
+                              create<ast::SintLiteral>(Source{}, &i32, 0))),
                       create<ast::IdentifierExpression>(
                           mod->RegisterSymbol("foo"), "foo")),
                   create<ast::ScalarConstructorExpression>(
-                      create<ast::SintLiteral>(&i32, 2))),
+                      create<ast::SintLiteral>(Source{}, &i32, 2))),
               create<ast::IdentifierExpression>(mod->RegisterSymbol("bar"),
                                                 "bar")),
           create<ast::IdentifierExpression>(mod->RegisterSymbol("baz"), "baz")),
@@ -903,25 +903,25 @@ TEST_F(BuilderTest, Accessor_Array_Of_Vec) {
   ary_params.push_back(create<ast::TypeConstructorExpression>(
       &vec, ast::ExpressionList{
                 create<ast::ScalarConstructorExpression>(
-                    create<ast::FloatLiteral>(&f32, 0.0)),
+                    create<ast::FloatLiteral>(Source{}, &f32, 0.0)),
                 create<ast::ScalarConstructorExpression>(
-                    create<ast::FloatLiteral>(&f32, 0.5)),
+                    create<ast::FloatLiteral>(Source{}, &f32, 0.5)),
             }));
 
   ary_params.push_back(create<ast::TypeConstructorExpression>(
       &vec, ast::ExpressionList{
                 create<ast::ScalarConstructorExpression>(
-                    create<ast::FloatLiteral>(&f32, -0.5)),
+                    create<ast::FloatLiteral>(Source{}, &f32, -0.5)),
                 create<ast::ScalarConstructorExpression>(
-                    create<ast::FloatLiteral>(&f32, -0.5)),
+                    create<ast::FloatLiteral>(Source{}, &f32, -0.5)),
             }));
 
   ary_params.push_back(create<ast::TypeConstructorExpression>(
       &vec, ast::ExpressionList{
                 create<ast::ScalarConstructorExpression>(
-                    create<ast::FloatLiteral>(&f32, 0.5)),
+                    create<ast::FloatLiteral>(Source{}, &f32, 0.5)),
                 create<ast::ScalarConstructorExpression>(
-                    create<ast::FloatLiteral>(&f32, -0.5)),
+                    create<ast::FloatLiteral>(Source{}, &f32, -0.5)),
             }));
 
   ast::Variable var(Source{}, "pos", ast::StorageClass::kPrivate, &arr, true,
@@ -931,7 +931,7 @@ TEST_F(BuilderTest, Accessor_Array_Of_Vec) {
   ast::ArrayAccessorExpression expr(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("pos"), "pos"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::UintLiteral>(&u32, 1)));
+          create<ast::UintLiteral>(Source{}, &u32, 1)));
 
   td.RegisterVariableForTesting(&var);
   ASSERT_TRUE(td.DetermineResultType(var.constructor())) << td.error();
@@ -977,9 +977,9 @@ TEST_F(BuilderTest, Accessor_Const_Vec) {
 
   ast::ExpressionList vec_params;
   vec_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 0.0)));
+      create<ast::FloatLiteral>(Source{}, &f32, 0.0)));
   vec_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 0.5)));
+      create<ast::FloatLiteral>(Source{}, &f32, 0.5)));
 
   ast::Variable var(
       Source{}, "pos", ast::StorageClass::kPrivate, &vec, true,
@@ -989,7 +989,7 @@ TEST_F(BuilderTest, Accessor_Const_Vec) {
   ast::ArrayAccessorExpression expr(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("pos"), "pos"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::UintLiteral>(&u32, 1)));
+          create<ast::UintLiteral>(Source{}, &u32, 1)));
 
   td.RegisterVariableForTesting(&var);
   ASSERT_TRUE(td.DetermineResultType(var.constructor())) << td.error();
diff --git a/src/writer/spirv/builder_assign_test.cc b/src/writer/spirv/builder_assign_test.cc
index 2285beb8bd..8947438d6e 100644
--- a/src/writer/spirv/builder_assign_test.cc
+++ b/src/writer/spirv/builder_assign_test.cc
@@ -50,7 +50,7 @@ TEST_F(BuilderTest, Assign_Var) {
   auto* ident =
       create<ast::IdentifierExpression>(mod->RegisterSymbol("var"), "var");
   auto* val = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f));
 
   ast::AssignmentStatement assign(ident, val);
 
@@ -120,16 +120,16 @@ TEST_F(BuilderTest, Assign_Var_Complex_ConstructorWithExtract) {
   auto* first = create<ast::TypeConstructorExpression>(
       &vec2, ast::ExpressionList{
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 1.0f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 1.0f)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 2.0f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 2.0f)),
              });
 
   auto* init = create<ast::TypeConstructorExpression>(
       &vec3, ast::ExpressionList{
                  first,
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 3.0f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 3.0f)),
              });
 
   ast::Variable v(Source{}, "var", ast::StorageClass::kOutput, &vec3, false,
@@ -174,11 +174,11 @@ TEST_F(BuilderTest, Assign_Var_Complex_Constructor) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   auto* init = create<ast::TypeConstructorExpression>(&vec3, vals);
 
@@ -239,7 +239,7 @@ TEST_F(BuilderTest, Assign_StructMember) {
       create<ast::IdentifierExpression>(mod->RegisterSymbol("b"), "b"));
 
   auto* val = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 4.0f));
+      create<ast::FloatLiteral>(Source{}, &f32, 4.0f));
 
   ast::AssignmentStatement assign(ident, val);
 
@@ -282,11 +282,11 @@ TEST_F(BuilderTest, Assign_Vector) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   auto* val = create<ast::TypeConstructorExpression>(&vec3, vals);
 
@@ -330,7 +330,7 @@ TEST_F(BuilderTest, Assign_Vector_MemberByName) {
       create<ast::IdentifierExpression>(mod->RegisterSymbol("var"), "var"),
       create<ast::IdentifierExpression>(mod->RegisterSymbol("y"), "y"));
   auto* val = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f));
 
   ast::AssignmentStatement assign(ident, val);
 
@@ -375,9 +375,9 @@ TEST_F(BuilderTest, Assign_Vector_MemberByIndex) {
   auto* ident = create<ast::ArrayAccessorExpression>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("var"), "var"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 1)));
+          create<ast::SintLiteral>(Source{}, &i32, 1)));
   auto* val = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f));
 
   ast::AssignmentStatement assign(ident, val);
 
diff --git a/src/writer/spirv/builder_binary_expression_test.cc b/src/writer/spirv/builder_binary_expression_test.cc
index 880834ea71..1fdfd7ace8 100644
--- a/src/writer/spirv/builder_binary_expression_test.cc
+++ b/src/writer/spirv/builder_binary_expression_test.cc
@@ -57,9 +57,9 @@ TEST_P(BinaryArithSignedIntegerTest, Scalar) {
   ast::type::I32 i32;
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 3));
+      create<ast::SintLiteral>(Source{}, &i32, 3));
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 4));
+      create<ast::SintLiteral>(Source{}, &i32, 4));
 
   ast::BinaryExpression expr(param.op, lhs, rhs);
 
@@ -84,21 +84,21 @@ TEST_P(BinaryArithSignedIntegerTest, Vector) {
   auto* lhs = create<ast::TypeConstructorExpression>(
       &vec3, ast::ExpressionList{
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::SintLiteral>(&i32, 1)),
+                     create<ast::SintLiteral>(Source{}, &i32, 1)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::SintLiteral>(&i32, 1)),
+                     create<ast::SintLiteral>(Source{}, &i32, 1)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::SintLiteral>(&i32, 1)),
+                     create<ast::SintLiteral>(Source{}, &i32, 1)),
              });
 
   auto* rhs = create<ast::TypeConstructorExpression>(
       &vec3, ast::ExpressionList{
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::SintLiteral>(&i32, 1)),
+                     create<ast::SintLiteral>(Source{}, &i32, 1)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::SintLiteral>(&i32, 1)),
+                     create<ast::SintLiteral>(Source{}, &i32, 1)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::SintLiteral>(&i32, 1)),
+                     create<ast::SintLiteral>(Source{}, &i32, 1)),
              });
 
   ast::BinaryExpression expr(param.op, lhs, rhs);
@@ -175,9 +175,9 @@ TEST_P(BinaryArithUnsignedIntegerTest, Scalar) {
   ast::type::U32 u32;
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 3));
+      create<ast::UintLiteral>(Source{}, &u32, 3));
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 4));
+      create<ast::UintLiteral>(Source{}, &u32, 4));
 
   ast::BinaryExpression expr(param.op, lhs, rhs);
 
@@ -202,21 +202,21 @@ TEST_P(BinaryArithUnsignedIntegerTest, Vector) {
   auto* lhs = create<ast::TypeConstructorExpression>(
       &vec3, ast::ExpressionList{
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::UintLiteral>(&u32, 1)),
+                     create<ast::UintLiteral>(Source{}, &u32, 1)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::UintLiteral>(&u32, 1)),
+                     create<ast::UintLiteral>(Source{}, &u32, 1)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::UintLiteral>(&u32, 1)),
+                     create<ast::UintLiteral>(Source{}, &u32, 1)),
              });
 
   auto* rhs = create<ast::TypeConstructorExpression>(
       &vec3, ast::ExpressionList{
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::UintLiteral>(&u32, 1)),
+                     create<ast::UintLiteral>(Source{}, &u32, 1)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::UintLiteral>(&u32, 1)),
+                     create<ast::UintLiteral>(Source{}, &u32, 1)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::UintLiteral>(&u32, 1)),
+                     create<ast::UintLiteral>(Source{}, &u32, 1)),
              });
 
   ast::BinaryExpression expr(param.op, lhs, rhs);
@@ -256,9 +256,9 @@ TEST_P(BinaryArithFloatTest, Scalar) {
   ast::type::F32 f32;
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.2f));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.2f));
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 4.5f));
+      create<ast::FloatLiteral>(Source{}, &f32, 4.5f));
 
   ast::BinaryExpression expr(param.op, lhs, rhs);
 
@@ -283,21 +283,21 @@ TEST_P(BinaryArithFloatTest, Vector) {
   auto* lhs = create<ast::TypeConstructorExpression>(
       &vec3, ast::ExpressionList{
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 1.f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 1.f)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 1.f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 1.f)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 1.f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 1.f)),
              });
 
   auto* rhs = create<ast::TypeConstructorExpression>(
       &vec3, ast::ExpressionList{
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 1.f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 1.f)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 1.f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 1.f)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 1.f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 1.f)),
              });
 
   ast::BinaryExpression expr(param.op, lhs, rhs);
@@ -331,9 +331,9 @@ TEST_P(BinaryCompareUnsignedIntegerTest, Scalar) {
   ast::type::U32 u32;
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 3));
+      create<ast::UintLiteral>(Source{}, &u32, 3));
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 4));
+      create<ast::UintLiteral>(Source{}, &u32, 4));
 
   ast::BinaryExpression expr(param.op, lhs, rhs);
 
@@ -360,21 +360,21 @@ TEST_P(BinaryCompareUnsignedIntegerTest, Vector) {
   auto* lhs = create<ast::TypeConstructorExpression>(
       &vec3, ast::ExpressionList{
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::UintLiteral>(&u32, 1)),
+                     create<ast::UintLiteral>(Source{}, &u32, 1)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::UintLiteral>(&u32, 1)),
+                     create<ast::UintLiteral>(Source{}, &u32, 1)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::UintLiteral>(&u32, 1)),
+                     create<ast::UintLiteral>(Source{}, &u32, 1)),
              });
 
   auto* rhs = create<ast::TypeConstructorExpression>(
       &vec3, ast::ExpressionList{
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::UintLiteral>(&u32, 1)),
+                     create<ast::UintLiteral>(Source{}, &u32, 1)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::UintLiteral>(&u32, 1)),
+                     create<ast::UintLiteral>(Source{}, &u32, 1)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::UintLiteral>(&u32, 1)),
+                     create<ast::UintLiteral>(Source{}, &u32, 1)),
              });
 
   ast::BinaryExpression expr(param.op, lhs, rhs);
@@ -412,9 +412,9 @@ TEST_P(BinaryCompareSignedIntegerTest, Scalar) {
   ast::type::I32 i32;
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 3));
+      create<ast::SintLiteral>(Source{}, &i32, 3));
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 4));
+      create<ast::SintLiteral>(Source{}, &i32, 4));
 
   ast::BinaryExpression expr(param.op, lhs, rhs);
 
@@ -441,21 +441,21 @@ TEST_P(BinaryCompareSignedIntegerTest, Vector) {
   auto* lhs = create<ast::TypeConstructorExpression>(
       &vec3, ast::ExpressionList{
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::SintLiteral>(&i32, 1)),
+                     create<ast::SintLiteral>(Source{}, &i32, 1)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::SintLiteral>(&i32, 1)),
+                     create<ast::SintLiteral>(Source{}, &i32, 1)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::SintLiteral>(&i32, 1)),
+                     create<ast::SintLiteral>(Source{}, &i32, 1)),
              });
 
   auto* rhs = create<ast::TypeConstructorExpression>(
       &vec3, ast::ExpressionList{
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::SintLiteral>(&i32, 1)),
+                     create<ast::SintLiteral>(Source{}, &i32, 1)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::SintLiteral>(&i32, 1)),
+                     create<ast::SintLiteral>(Source{}, &i32, 1)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::SintLiteral>(&i32, 1)),
+                     create<ast::SintLiteral>(Source{}, &i32, 1)),
              });
 
   ast::BinaryExpression expr(param.op, lhs, rhs);
@@ -493,9 +493,9 @@ TEST_P(BinaryCompareFloatTest, Scalar) {
   ast::type::F32 f32;
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.2f));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.2f));
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 4.5f));
+      create<ast::FloatLiteral>(Source{}, &f32, 4.5f));
 
   ast::BinaryExpression expr(param.op, lhs, rhs);
 
@@ -522,21 +522,21 @@ TEST_P(BinaryCompareFloatTest, Vector) {
   auto* lhs = create<ast::TypeConstructorExpression>(
       &vec3, ast::ExpressionList{
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 1.f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 1.f)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 1.f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 1.f)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 1.f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 1.f)),
              });
 
   auto* rhs = create<ast::TypeConstructorExpression>(
       &vec3, ast::ExpressionList{
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 1.f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 1.f)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 1.f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 1.f)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 1.f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 1.f)),
              });
 
   ast::BinaryExpression expr(param.op, lhs, rhs);
@@ -574,15 +574,15 @@ TEST_F(BuilderTest, Binary_Multiply_VectorScalar) {
   auto* lhs = create<ast::TypeConstructorExpression>(
       &vec3, ast::ExpressionList{
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 1.f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 1.f)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 1.f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 1.f)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 1.f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 1.f)),
              });
 
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f));
 
   ast::BinaryExpression expr(ast::BinaryOp::kMultiply, lhs, rhs);
 
@@ -605,15 +605,15 @@ TEST_F(BuilderTest, Binary_Multiply_ScalarVector) {
   ast::type::Vector vec3(&f32, 3);
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f));
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   auto* rhs = create<ast::TypeConstructorExpression>(&vec3, vals);
 
   ast::BinaryExpression expr(ast::BinaryOp::kMultiply, lhs, rhs);
@@ -647,7 +647,7 @@ TEST_F(BuilderTest, Binary_Multiply_MatrixScalar) {
   auto* lhs =
       create<ast::IdentifierExpression>(mod->RegisterSymbol("mat"), "mat");
   auto* rhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f));
 
   td.RegisterVariableForTesting(var);
 
@@ -685,7 +685,7 @@ TEST_F(BuilderTest, Binary_Multiply_ScalarMatrix) {
                             nullptr,                         // constructor
                             ast::VariableDecorationList{});  // decorations
   auto* lhs = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f));
   auto* rhs =
       create<ast::IdentifierExpression>(mod->RegisterSymbol("mat"), "mat");
 
@@ -730,11 +730,11 @@ TEST_F(BuilderTest, Binary_Multiply_MatrixVector) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   auto* rhs = create<ast::TypeConstructorExpression>(&vec3, vals);
 
   td.RegisterVariableForTesting(var);
@@ -777,11 +777,11 @@ TEST_F(BuilderTest, Binary_Multiply_VectorMatrix) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   auto* lhs = create<ast::TypeConstructorExpression>(&vec3, vals);
 
   auto* rhs =
@@ -855,19 +855,19 @@ TEST_F(BuilderTest, Binary_Multiply_MatrixMatrix) {
 TEST_F(BuilderTest, Binary_LogicalAnd) {
   ast::type::I32 i32;
 
-  auto* lhs =
-      create<ast::BinaryExpression>(ast::BinaryOp::kEqual,
-                                    create<ast::ScalarConstructorExpression>(
-                                        create<ast::SintLiteral>(&i32, 1)),
-                                    create<ast::ScalarConstructorExpression>(
-                                        create<ast::SintLiteral>(&i32, 2)));
+  auto* lhs = create<ast::BinaryExpression>(
+      ast::BinaryOp::kEqual,
+      create<ast::ScalarConstructorExpression>(
+          create<ast::SintLiteral>(Source{}, &i32, 1)),
+      create<ast::ScalarConstructorExpression>(
+          create<ast::SintLiteral>(Source{}, &i32, 2)));
 
-  auto* rhs =
-      create<ast::BinaryExpression>(ast::BinaryOp::kEqual,
-                                    create<ast::ScalarConstructorExpression>(
-                                        create<ast::SintLiteral>(&i32, 3)),
-                                    create<ast::ScalarConstructorExpression>(
-                                        create<ast::SintLiteral>(&i32, 4)));
+  auto* rhs = create<ast::BinaryExpression>(
+      ast::BinaryOp::kEqual,
+      create<ast::ScalarConstructorExpression>(
+          create<ast::SintLiteral>(Source{}, &i32, 3)),
+      create<ast::ScalarConstructorExpression>(
+          create<ast::SintLiteral>(Source{}, &i32, 4)));
 
   ast::BinaryExpression expr(ast::BinaryOp::kLogicalAnd, lhs, rhs);
 
@@ -907,17 +907,17 @@ TEST_F(BuilderTest, Binary_LogicalAnd_WithLoads) {
       &bool_type,                    // type
       false,                         // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::BoolLiteral>(&bool_type, true)),  // constructor
-      ast::VariableDecorationList{});                   // decorations
+          create<ast::BoolLiteral>(Source{}, &bool_type, true)),  // constructor
+      ast::VariableDecorationList{});                             // decorations
   auto* b_var = create<ast::Variable>(
       Source{},                      // source
       "b",                           // name
       ast::StorageClass::kFunction,  // storage_class
       &bool_type,                    // type
       false,                         // is_const
-      create<ast::ScalarConstructorExpression>(
-          create<ast::BoolLiteral>(&bool_type, false)),  // constructor
-      ast::VariableDecorationList{});                    // decorations
+      create<ast::ScalarConstructorExpression>(create<ast::BoolLiteral>(
+          Source{}, &bool_type, false)),  // constructor
+      ast::VariableDecorationList{});     // decorations
 
   auto* lhs = create<ast::IdentifierExpression>(mod->RegisterSymbol("a"), "a");
   auto* rhs = create<ast::IdentifierExpression>(mod->RegisterSymbol("b"), "b");
@@ -966,14 +966,15 @@ TEST_F(BuilderTest, Binary_logicalOr_Nested_LogicalAnd) {
   auto* logical_and_expr = create<ast::BinaryExpression>(
       ast::BinaryOp::kLogicalAnd,
       create<ast::ScalarConstructorExpression>(
-          create<ast::BoolLiteral>(&bool_ty, true)),
+          create<ast::BoolLiteral>(Source{}, &bool_ty, true)),
       create<ast::ScalarConstructorExpression>(
-          create<ast::BoolLiteral>(&bool_ty, false)));
+          create<ast::BoolLiteral>(Source{}, &bool_ty, false)));
 
-  ast::BinaryExpression expr(ast::BinaryOp::kLogicalOr,
-                             create<ast::ScalarConstructorExpression>(
-                                 create<ast::BoolLiteral>(&bool_ty, true)),
-                             logical_and_expr);
+  ast::BinaryExpression expr(
+      ast::BinaryOp::kLogicalOr,
+      create<ast::ScalarConstructorExpression>(
+          create<ast::BoolLiteral>(Source{}, &bool_ty, true)),
+      logical_and_expr);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -1012,14 +1013,15 @@ TEST_F(BuilderTest, Binary_logicalAnd_Nested_LogicalOr) {
   auto* logical_or_expr = create<ast::BinaryExpression>(
       ast::BinaryOp::kLogicalOr,
       create<ast::ScalarConstructorExpression>(
-          create<ast::BoolLiteral>(&bool_ty, true)),
+          create<ast::BoolLiteral>(Source{}, &bool_ty, true)),
       create<ast::ScalarConstructorExpression>(
-          create<ast::BoolLiteral>(&bool_ty, false)));
+          create<ast::BoolLiteral>(Source{}, &bool_ty, false)));
 
-  ast::BinaryExpression expr(ast::BinaryOp::kLogicalAnd,
-                             create<ast::ScalarConstructorExpression>(
-                                 create<ast::BoolLiteral>(&bool_ty, true)),
-                             logical_or_expr);
+  ast::BinaryExpression expr(
+      ast::BinaryOp::kLogicalAnd,
+      create<ast::ScalarConstructorExpression>(
+          create<ast::BoolLiteral>(Source{}, &bool_ty, true)),
+      logical_or_expr);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -1051,19 +1053,19 @@ OpBranch %4
 TEST_F(BuilderTest, Binary_LogicalOr) {
   ast::type::I32 i32;
 
-  auto* lhs =
-      create<ast::BinaryExpression>(ast::BinaryOp::kEqual,
-                                    create<ast::ScalarConstructorExpression>(
-                                        create<ast::SintLiteral>(&i32, 1)),
-                                    create<ast::ScalarConstructorExpression>(
-                                        create<ast::SintLiteral>(&i32, 2)));
+  auto* lhs = create<ast::BinaryExpression>(
+      ast::BinaryOp::kEqual,
+      create<ast::ScalarConstructorExpression>(
+          create<ast::SintLiteral>(Source{}, &i32, 1)),
+      create<ast::ScalarConstructorExpression>(
+          create<ast::SintLiteral>(Source{}, &i32, 2)));
 
-  auto* rhs =
-      create<ast::BinaryExpression>(ast::BinaryOp::kEqual,
-                                    create<ast::ScalarConstructorExpression>(
-                                        create<ast::SintLiteral>(&i32, 3)),
-                                    create<ast::ScalarConstructorExpression>(
-                                        create<ast::SintLiteral>(&i32, 4)));
+  auto* rhs = create<ast::BinaryExpression>(
+      ast::BinaryOp::kEqual,
+      create<ast::ScalarConstructorExpression>(
+          create<ast::SintLiteral>(Source{}, &i32, 3)),
+      create<ast::ScalarConstructorExpression>(
+          create<ast::SintLiteral>(Source{}, &i32, 4)));
 
   ast::BinaryExpression expr(ast::BinaryOp::kLogicalOr, lhs, rhs);
 
@@ -1103,17 +1105,17 @@ TEST_F(BuilderTest, Binary_LogicalOr_WithLoads) {
       &bool_type,                    // type
       false,                         // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::BoolLiteral>(&bool_type, true)),  // constructor
-      ast::VariableDecorationList{});                   // decorations
+          create<ast::BoolLiteral>(Source{}, &bool_type, true)),  // constructor
+      ast::VariableDecorationList{});                             // decorations
   auto* b_var = create<ast::Variable>(
       Source{},                      // source
       "b",                           // name
       ast::StorageClass::kFunction,  // storage_class
       &bool_type,                    // type
       false,                         // is_const
-      create<ast::ScalarConstructorExpression>(
-          create<ast::BoolLiteral>(&bool_type, false)),  // constructor
-      ast::VariableDecorationList{});                    // decorations
+      create<ast::ScalarConstructorExpression>(create<ast::BoolLiteral>(
+          Source{}, &bool_type, false)),  // constructor
+      ast::VariableDecorationList{});     // decorations
 
   auto* lhs = create<ast::IdentifierExpression>(mod->RegisterSymbol("a"), "a");
   auto* rhs = create<ast::IdentifierExpression>(mod->RegisterSymbol("b"), "b");
diff --git a/src/writer/spirv/builder_bitcast_expression_test.cc b/src/writer/spirv/builder_bitcast_expression_test.cc
index ee166f73de..b9ccae751f 100644
--- a/src/writer/spirv/builder_bitcast_expression_test.cc
+++ b/src/writer/spirv/builder_bitcast_expression_test.cc
@@ -35,9 +35,9 @@ TEST_F(BuilderTest, Bitcast) {
   ast::type::U32 u32;
   ast::type::F32 f32;
 
-  ast::BitcastExpression bitcast(&u32,
-                                 create<ast::ScalarConstructorExpression>(
-                                     create<ast::FloatLiteral>(&f32, 2.4)));
+  ast::BitcastExpression bitcast(
+      &u32, create<ast::ScalarConstructorExpression>(
+                create<ast::FloatLiteral>(Source{}, &f32, 2.4)));
 
   ASSERT_TRUE(td.DetermineResultType(&bitcast)) << td.error();
 
@@ -56,9 +56,9 @@ TEST_F(BuilderTest, Bitcast) {
 TEST_F(BuilderTest, Bitcast_DuplicateType) {
   ast::type::F32 f32;
 
-  ast::BitcastExpression bitcast(&f32,
-                                 create<ast::ScalarConstructorExpression>(
-                                     create<ast::FloatLiteral>(&f32, 2.4)));
+  ast::BitcastExpression bitcast(
+      &f32, create<ast::ScalarConstructorExpression>(
+                create<ast::FloatLiteral>(Source{}, &f32, 2.4)));
 
   ASSERT_TRUE(td.DetermineResultType(&bitcast)) << td.error();
 
diff --git a/src/writer/spirv/builder_block_test.cc b/src/writer/spirv/builder_block_test.cc
index 838a08445a..7dea26ef83 100644
--- a/src/writer/spirv/builder_block_test.cc
+++ b/src/writer/spirv/builder_block_test.cc
@@ -52,7 +52,7 @@ TEST_F(BuilderTest, Block) {
   outer.append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("var"), "var"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 1.0f))));
+          create<ast::FloatLiteral>(Source{}, &f32, 1.0f))));
 
   auto* inner = create<ast::BlockStatement>();
   inner->append(create<ast::VariableDeclStatement>(
@@ -66,13 +66,13 @@ TEST_F(BuilderTest, Block) {
   inner->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("var"), "var"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 2.0f))));
+          create<ast::FloatLiteral>(Source{}, &f32, 2.0f))));
 
   outer.append(inner);
   outer.append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("var"), "var"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 3.0f))));
+          create<ast::FloatLiteral>(Source{}, &f32, 3.0f))));
 
   ASSERT_TRUE(td.DetermineResultType(&outer)) << td.error();
 
diff --git a/src/writer/spirv/builder_call_test.cc b/src/writer/spirv/builder_call_test.cc
index 8cc1ba25d1..e7a7b5298f 100644
--- a/src/writer/spirv/builder_call_test.cc
+++ b/src/writer/spirv/builder_call_test.cc
@@ -77,9 +77,9 @@ TEST_F(BuilderTest, Expression_Call) {
 
   ast::ExpressionList call_params;
   call_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   call_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(
                                mod->RegisterSymbol("a_func"), "a_func"),
@@ -159,9 +159,9 @@ TEST_F(BuilderTest, Statement_Call) {
 
   ast::ExpressionList call_params;
   call_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
   call_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.f)));
 
   ast::CallStatement expr(
       create<ast::CallExpression>(create<ast::IdentifierExpression>(
diff --git a/src/writer/spirv/builder_function_variable_test.cc b/src/writer/spirv/builder_function_variable_test.cc
index fcdfeb3ba6..8e40badca5 100644
--- a/src/writer/spirv/builder_function_variable_test.cc
+++ b/src/writer/spirv/builder_function_variable_test.cc
@@ -70,11 +70,11 @@ TEST_F(BuilderTest, FunctionVar_WithConstantConstructor) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   auto* init = create<ast::TypeConstructorExpression>(&vec, vals);
 
@@ -110,16 +110,16 @@ TEST_F(BuilderTest, FunctionVar_WithNonConstantConstructor) {
   ast::type::F32 f32;
   ast::type::Vector vec(&f32, 2);
 
-  auto* rel =
-      create<ast::BinaryExpression>(ast::BinaryOp::kAdd,
-                                    create<ast::ScalarConstructorExpression>(
-                                        create<ast::FloatLiteral>(&f32, 3.0f)),
-                                    create<ast::ScalarConstructorExpression>(
-                                        create<ast::FloatLiteral>(&f32, 3.0f)));
+  auto* rel = create<ast::BinaryExpression>(
+      ast::BinaryOp::kAdd,
+      create<ast::ScalarConstructorExpression>(
+          create<ast::FloatLiteral>(Source{}, &f32, 3.0f)),
+      create<ast::ScalarConstructorExpression>(
+          create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(rel);
 
   auto* init = create<ast::TypeConstructorExpression>(&vec, vals);
@@ -160,7 +160,7 @@ TEST_F(BuilderTest, FunctionVar_WithNonConstantConstructorLoadedFromVar) {
   ast::type::F32 f32;
 
   auto* init = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f));
 
   ASSERT_TRUE(td.DetermineResultType(init)) << td.error();
 
@@ -207,7 +207,7 @@ TEST_F(BuilderTest, FunctionVar_ConstWithVarInitializer) {
   ast::type::F32 f32;
 
   auto* init = create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f));
 
   EXPECT_TRUE(td.DetermineResultType(init)) << td.error();
 
@@ -250,11 +250,11 @@ TEST_F(BuilderTest, FunctionVar_Const) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   auto* init = create<ast::TypeConstructorExpression>(&vec, vals);
 
diff --git a/src/writer/spirv/builder_global_variable_test.cc b/src/writer/spirv/builder_global_variable_test.cc
index 16062c2ce4..9a8f136165 100644
--- a/src/writer/spirv/builder_global_variable_test.cc
+++ b/src/writer/spirv/builder_global_variable_test.cc
@@ -99,11 +99,11 @@ TEST_F(BuilderTest, GlobalVar_WithConstructor) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   auto* init = create<ast::TypeConstructorExpression>(&vec, vals);
 
@@ -135,11 +135,11 @@ TEST_F(BuilderTest, GlobalVar_Const) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   auto* init = create<ast::TypeConstructorExpression>(&vec, vals);
 
@@ -168,11 +168,11 @@ TEST_F(BuilderTest, GlobalVar_Complex_Constructor) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 2.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
   auto* init = create<ast::TypeConstructorExpression>(&vec3, vals);
 
   EXPECT_TRUE(td.DetermineResultType(init)) << td.error();
@@ -201,16 +201,16 @@ TEST_F(BuilderTest, GlobalVar_Complex_ConstructorWithExtract) {
   auto* first = create<ast::TypeConstructorExpression>(
       &vec2, ast::ExpressionList{
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 1.0f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 1.0f)),
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 2.0f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 2.0f)),
              });
 
   auto* init = create<ast::TypeConstructorExpression>(
       &vec3, ast::ExpressionList{
                  first,
                  create<ast::ScalarConstructorExpression>(
-                     create<ast::FloatLiteral>(&f32, 3.0f)),
+                     create<ast::FloatLiteral>(Source{}, &f32, 3.0f)),
              });
 
   EXPECT_TRUE(td.DetermineResultType(init)) << td.error();
@@ -328,7 +328,7 @@ TEST_F(BuilderTest, GlobalVar_ConstantId_Bool) {
       &bool_type,                // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::BoolLiteral>(&bool_type, true)),  // constructor
+          create<ast::BoolLiteral>(Source{}, &bool_type, true)),  // constructor
       ast::VariableDecorationList{
           // decorations
           create<ast::ConstantIdDecoration>(1200, Source{}),
@@ -383,7 +383,7 @@ TEST_F(BuilderTest, GlobalVar_ConstantId_Scalar) {
       &f32,                      // type
       false,                     // is_const
       create<ast::ScalarConstructorExpression>(
-          create<ast::FloatLiteral>(&f32, 2.0)),  // constructor
+          create<ast::FloatLiteral>(Source{}, &f32, 2.0)),  // constructor
       ast::VariableDecorationList{
           // decorations
           create<ast::ConstantIdDecoration>(0, Source{}),
diff --git a/src/writer/spirv/builder_ident_expression_test.cc b/src/writer/spirv/builder_ident_expression_test.cc
index d678c7621e..4f1f3af77f 100644
--- a/src/writer/spirv/builder_ident_expression_test.cc
+++ b/src/writer/spirv/builder_ident_expression_test.cc
@@ -43,11 +43,11 @@ TEST_F(BuilderTest, IdentifierExpression_GlobalConst) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   auto* init = create<ast::TypeConstructorExpression>(&vec, vals);
 
@@ -102,11 +102,11 @@ TEST_F(BuilderTest, IdentifierExpression_FunctionConst) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   auto* init = create<ast::TypeConstructorExpression>(&vec, vals);
 
@@ -195,7 +195,7 @@ TEST_F(BuilderTest, IdentifierExpression_NoLoadConst) {
 
   ast::Variable var(Source{}, "var", ast::StorageClass::kNone, &i32, true,
                     create<ast::ScalarConstructorExpression>(
-                        create<ast::SintLiteral>(&i32, 2)),
+                        create<ast::SintLiteral>(Source{}, &i32, 2)),
                     ast::VariableDecorationList{});
 
   td.RegisterVariableForTesting(&var);
diff --git a/src/writer/spirv/builder_if_test.cc b/src/writer/spirv/builder_if_test.cc
index b85dff9a3d..e3724bb2dc 100644
--- a/src/writer/spirv/builder_if_test.cc
+++ b/src/writer/spirv/builder_if_test.cc
@@ -46,7 +46,7 @@ TEST_F(BuilderTest, If_Empty) {
   // if (true) {
   // }
   auto* cond = create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, true));
+      create<ast::BoolLiteral>(Source{}, &bool_type, true));
 
   ast::IfStatement expr(Source{}, cond, create<ast::BlockStatement>(),
                         ast::ElseStatementList{});
@@ -88,10 +88,10 @@ TEST_F(BuilderTest, If_WithStatements) {
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2))));
+          create<ast::SintLiteral>(Source{}, &i32, 2))));
 
   auto* cond = create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, true));
+      create<ast::BoolLiteral>(Source{}, &bool_type, true));
 
   ast::IfStatement expr(Source{}, cond, body, ast::ElseStatementList{});
 
@@ -142,16 +142,16 @@ TEST_F(BuilderTest, If_WithElse) {
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2))));
+          create<ast::SintLiteral>(Source{}, &i32, 2))));
 
   auto* else_body = create<ast::BlockStatement>();
   else_body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 3))));
+          create<ast::SintLiteral>(Source{}, &i32, 3))));
 
   auto* cond = create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, true));
+      create<ast::BoolLiteral>(Source{}, &bool_type, true));
 
   ast::IfStatement expr(Source{}, cond, body,
                         {create<ast::ElseStatement>(else_body)});
@@ -208,19 +208,19 @@ TEST_F(BuilderTest, If_WithElseIf) {
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2))));
+          create<ast::SintLiteral>(Source{}, &i32, 2))));
 
   auto* else_body = create<ast::BlockStatement>();
   else_body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 3))));
+          create<ast::SintLiteral>(Source{}, &i32, 3))));
 
   auto* else_cond = create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, true));
+      create<ast::BoolLiteral>(Source{}, &bool_type, true));
 
   auto* cond = create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, true));
+      create<ast::BoolLiteral>(Source{}, &bool_type, true));
 
   ast::IfStatement expr(Source{}, cond, body,
                         {create<ast::ElseStatement>(else_cond, else_body)});
@@ -286,30 +286,30 @@ TEST_F(BuilderTest, If_WithMultiple) {
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2))));
+          create<ast::SintLiteral>(Source{}, &i32, 2))));
   auto* elseif_1_body = create<ast::BlockStatement>();
   elseif_1_body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 3))));
+          create<ast::SintLiteral>(Source{}, &i32, 3))));
   auto* elseif_2_body = create<ast::BlockStatement>();
   elseif_2_body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 4))));
+          create<ast::SintLiteral>(Source{}, &i32, 4))));
   auto* else_body = create<ast::BlockStatement>();
   else_body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 5))));
+          create<ast::SintLiteral>(Source{}, &i32, 5))));
 
   auto* elseif_1_cond = create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, true));
+      create<ast::BoolLiteral>(Source{}, &bool_type, true));
   auto* elseif_2_cond = create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, false));
+      create<ast::BoolLiteral>(Source{}, &bool_type, false));
 
   auto* cond = create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, true));
+      create<ast::BoolLiteral>(Source{}, &bool_type, true));
 
   ast::IfStatement expr(
       Source{}, cond, body,
@@ -376,7 +376,7 @@ TEST_F(BuilderTest, If_WithBreak) {
   //   }
   // }
   auto* cond = create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, true));
+      create<ast::BoolLiteral>(Source{}, &bool_type, true));
 
   auto* if_body = create<ast::BlockStatement>();
   if_body->append(create<ast::BreakStatement>());
@@ -424,7 +424,7 @@ TEST_F(BuilderTest, If_WithElseBreak) {
   //   }
   // }
   auto* cond = create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, true));
+      create<ast::BoolLiteral>(Source{}, &bool_type, true));
 
   auto* else_body = create<ast::BlockStatement>();
   else_body->append(create<ast::BreakStatement>());
@@ -474,7 +474,7 @@ TEST_F(BuilderTest, If_WithContinue) {
   //   }
   // }
   auto* cond = create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, true));
+      create<ast::BoolLiteral>(Source{}, &bool_type, true));
 
   auto* if_body = create<ast::BlockStatement>();
   if_body->append(create<ast::ContinueStatement>());
@@ -522,7 +522,7 @@ TEST_F(BuilderTest, If_WithElseContinue) {
   //   }
   // }
   auto* cond = create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, true));
+      create<ast::BoolLiteral>(Source{}, &bool_type, true));
 
   auto* else_body = create<ast::BlockStatement>();
   else_body->append(create<ast::ContinueStatement>());
@@ -570,7 +570,7 @@ TEST_F(BuilderTest, If_WithReturn) {
   //   return;
   // }
   auto* cond = create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, true));
+      create<ast::BoolLiteral>(Source{}, &bool_type, true));
 
   auto* if_body = create<ast::BlockStatement>();
   if_body->append(create<ast::ReturnStatement>(Source{}));
@@ -600,9 +600,9 @@ TEST_F(BuilderTest, If_WithReturnValue) {
   //   return false;
   // }
   auto* cond = create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, true));
+      create<ast::BoolLiteral>(Source{}, &bool_type, true));
   auto* cond2 = create<ast::ScalarConstructorExpression>(
-      create<ast::BoolLiteral>(&bool_type, false));
+      create<ast::BoolLiteral>(Source{}, &bool_type, false));
 
   auto* if_body = create<ast::BlockStatement>();
   if_body->append(create<ast::ReturnStatement>(Source{}, cond2));
diff --git a/src/writer/spirv/builder_literal_test.cc b/src/writer/spirv/builder_literal_test.cc
index a50f0ca7b8..acecbdeb79 100644
--- a/src/writer/spirv/builder_literal_test.cc
+++ b/src/writer/spirv/builder_literal_test.cc
@@ -35,7 +35,7 @@ using BuilderTest = TestHelper;
 
 TEST_F(BuilderTest, Literal_Bool_True) {
   ast::type::Bool bool_type;
-  ast::BoolLiteral b_true(&bool_type, true);
+  ast::BoolLiteral b_true(Source{}, &bool_type, true);
 
   auto id = b.GenerateLiteralIfNeeded(nullptr, &b_true);
   ASSERT_FALSE(b.has_error()) << b.error();
@@ -48,7 +48,7 @@ TEST_F(BuilderTest, Literal_Bool_True) {
 
 TEST_F(BuilderTest, Literal_Bool_False) {
   ast::type::Bool bool_type;
-  ast::BoolLiteral b_false(&bool_type, false);
+  ast::BoolLiteral b_false(Source{}, &bool_type, false);
 
   auto id = b.GenerateLiteralIfNeeded(nullptr, &b_false);
   ASSERT_FALSE(b.has_error()) << b.error();
@@ -61,8 +61,8 @@ TEST_F(BuilderTest, Literal_Bool_False) {
 
 TEST_F(BuilderTest, Literal_Bool_Dedup) {
   ast::type::Bool bool_type;
-  ast::BoolLiteral b_true(&bool_type, true);
-  ast::BoolLiteral b_false(&bool_type, false);
+  ast::BoolLiteral b_true(Source{}, &bool_type, true);
+  ast::BoolLiteral b_false(Source{}, &bool_type, false);
 
   ASSERT_NE(b.GenerateLiteralIfNeeded(nullptr, &b_true), 0u);
   ASSERT_FALSE(b.has_error()) << b.error();
@@ -79,7 +79,7 @@ TEST_F(BuilderTest, Literal_Bool_Dedup) {
 
 TEST_F(BuilderTest, Literal_I32) {
   ast::type::I32 i32;
-  ast::SintLiteral i(&i32, -23);
+  ast::SintLiteral i(Source{}, &i32, -23);
 
   auto id = b.GenerateLiteralIfNeeded(nullptr, &i);
   ASSERT_FALSE(b.has_error()) << b.error();
@@ -92,8 +92,8 @@ TEST_F(BuilderTest, Literal_I32) {
 
 TEST_F(BuilderTest, Literal_I32_Dedup) {
   ast::type::I32 i32;
-  ast::SintLiteral i1(&i32, -23);
-  ast::SintLiteral i2(&i32, -23);
+  ast::SintLiteral i1(Source{}, &i32, -23);
+  ast::SintLiteral i2(Source{}, &i32, -23);
 
   ASSERT_NE(b.GenerateLiteralIfNeeded(nullptr, &i1), 0u);
   ASSERT_NE(b.GenerateLiteralIfNeeded(nullptr, &i2), 0u);
@@ -106,7 +106,7 @@ TEST_F(BuilderTest, Literal_I32_Dedup) {
 
 TEST_F(BuilderTest, Literal_U32) {
   ast::type::U32 u32;
-  ast::UintLiteral i(&u32, 23);
+  ast::UintLiteral i(Source{}, &u32, 23);
 
   auto id = b.GenerateLiteralIfNeeded(nullptr, &i);
   ASSERT_FALSE(b.has_error()) << b.error();
@@ -119,8 +119,8 @@ TEST_F(BuilderTest, Literal_U32) {
 
 TEST_F(BuilderTest, Literal_U32_Dedup) {
   ast::type::U32 u32;
-  ast::UintLiteral i1(&u32, 23);
-  ast::UintLiteral i2(&u32, 23);
+  ast::UintLiteral i1(Source{}, &u32, 23);
+  ast::UintLiteral i2(Source{}, &u32, 23);
 
   ASSERT_NE(b.GenerateLiteralIfNeeded(nullptr, &i1), 0u);
   ASSERT_NE(b.GenerateLiteralIfNeeded(nullptr, &i2), 0u);
@@ -133,7 +133,7 @@ TEST_F(BuilderTest, Literal_U32_Dedup) {
 
 TEST_F(BuilderTest, Literal_F32) {
   ast::type::F32 f32;
-  ast::FloatLiteral i(&f32, 23.245f);
+  ast::FloatLiteral i(Source{}, &f32, 23.245f);
 
   auto id = b.GenerateLiteralIfNeeded(nullptr, &i);
   ASSERT_FALSE(b.has_error()) << b.error();
@@ -146,8 +146,8 @@ TEST_F(BuilderTest, Literal_F32) {
 
 TEST_F(BuilderTest, Literal_F32_Dedup) {
   ast::type::F32 f32;
-  ast::FloatLiteral i1(&f32, 23.245f);
-  ast::FloatLiteral i2(&f32, 23.245f);
+  ast::FloatLiteral i1(Source{}, &f32, 23.245f);
+  ast::FloatLiteral i2(Source{}, &f32, 23.245f);
 
   ASSERT_NE(b.GenerateLiteralIfNeeded(nullptr, &i1), 0u);
   ASSERT_NE(b.GenerateLiteralIfNeeded(nullptr, &i2), 0u);
diff --git a/src/writer/spirv/builder_loop_test.cc b/src/writer/spirv/builder_loop_test.cc
index 5bc1327ee7..98cffeb6a7 100644
--- a/src/writer/spirv/builder_loop_test.cc
+++ b/src/writer/spirv/builder_loop_test.cc
@@ -78,7 +78,7 @@ TEST_F(BuilderTest, Loop_WithoutContinuing) {
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2))));
+          create<ast::SintLiteral>(Source{}, &i32, 2))));
 
   ast::LoopStatement expr(body, create<ast::BlockStatement>());
 
@@ -131,13 +131,13 @@ TEST_F(BuilderTest, Loop_WithContinuing) {
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2))));
+          create<ast::SintLiteral>(Source{}, &i32, 2))));
 
   auto* continuing = create<ast::BlockStatement>();
   continuing->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 3))));
+          create<ast::SintLiteral>(Source{}, &i32, 3))));
   ast::LoopStatement expr(body, continuing);
 
   td.RegisterVariableForTesting(var);
diff --git a/src/writer/spirv/builder_return_test.cc b/src/writer/spirv/builder_return_test.cc
index a219649b03..8c661008f9 100644
--- a/src/writer/spirv/builder_return_test.cc
+++ b/src/writer/spirv/builder_return_test.cc
@@ -51,11 +51,11 @@ TEST_F(BuilderTest, Return_WithValue) {
 
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 1.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
+      create<ast::FloatLiteral>(Source{}, &f32, 3.0f)));
 
   auto* val = create<ast::TypeConstructorExpression>(&vec, vals);
 
diff --git a/src/writer/spirv/builder_switch_test.cc b/src/writer/spirv/builder_switch_test.cc
index c8d7be0642..4ace391593 100644
--- a/src/writer/spirv/builder_switch_test.cc
+++ b/src/writer/spirv/builder_switch_test.cc
@@ -45,7 +45,7 @@ TEST_F(BuilderTest, Switch_Empty) {
   // switch (1) {
   // }
   auto* cond = create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1));
+      create<ast::SintLiteral>(Source{}, &i32, 1));
 
   ast::SwitchStatement expr(cond, ast::CaseStatementList{});
 
@@ -97,19 +97,19 @@ TEST_F(BuilderTest, Switch_WithCase) {
   case_1_body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 1))));
+          create<ast::SintLiteral>(Source{}, &i32, 1))));
 
   auto* case_2_body = create<ast::BlockStatement>();
   case_2_body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2))));
+          create<ast::SintLiteral>(Source{}, &i32, 2))));
 
   ast::CaseSelectorList selector_1;
-  selector_1.push_back(create<ast::SintLiteral>(&i32, 1));
+  selector_1.push_back(create<ast::SintLiteral>(Source{}, &i32, 1));
 
   ast::CaseSelectorList selector_2;
-  selector_2.push_back(create<ast::SintLiteral>(&i32, 2));
+  selector_2.push_back(create<ast::SintLiteral>(Source{}, &i32, 2));
 
   ast::CaseStatementList cases;
   cases.push_back(create<ast::CaseStatement>(selector_1, case_1_body));
@@ -191,7 +191,7 @@ TEST_F(BuilderTest, Switch_WithDefault) {
   default_body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 1))));
+          create<ast::SintLiteral>(Source{}, &i32, 1))));
 
   ast::CaseStatementList cases;
   cases.push_back(create<ast::CaseStatement>(default_body));
@@ -270,26 +270,26 @@ TEST_F(BuilderTest, Switch_WithCaseAndDefault) {
   case_1_body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 1))));
+          create<ast::SintLiteral>(Source{}, &i32, 1))));
 
   auto* case_2_body = create<ast::BlockStatement>();
   case_2_body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2))));
+          create<ast::SintLiteral>(Source{}, &i32, 2))));
 
   auto* default_body = create<ast::BlockStatement>();
   default_body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 3))));
+          create<ast::SintLiteral>(Source{}, &i32, 3))));
 
   ast::CaseSelectorList selector_1;
-  selector_1.push_back(create<ast::SintLiteral>(&i32, 1));
+  selector_1.push_back(create<ast::SintLiteral>(Source{}, &i32, 1));
 
   ast::CaseSelectorList selector_2;
-  selector_2.push_back(create<ast::SintLiteral>(&i32, 2));
-  selector_2.push_back(create<ast::SintLiteral>(&i32, 3));
+  selector_2.push_back(create<ast::SintLiteral>(Source{}, &i32, 2));
+  selector_2.push_back(create<ast::SintLiteral>(Source{}, &i32, 3));
 
   ast::CaseStatementList cases;
   cases.push_back(create<ast::CaseStatement>(selector_1, case_1_body));
@@ -379,26 +379,26 @@ TEST_F(BuilderTest, Switch_CaseWithFallthrough) {
   case_1_body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 1))));
+          create<ast::SintLiteral>(Source{}, &i32, 1))));
   case_1_body->append(create<ast::FallthroughStatement>());
 
   auto* case_2_body = create<ast::BlockStatement>();
   case_2_body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 2))));
+          create<ast::SintLiteral>(Source{}, &i32, 2))));
 
   auto* default_body = create<ast::BlockStatement>();
   default_body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 3))));
+          create<ast::SintLiteral>(Source{}, &i32, 3))));
 
   ast::CaseSelectorList selector_1;
-  selector_1.push_back(create<ast::SintLiteral>(&i32, 1));
+  selector_1.push_back(create<ast::SintLiteral>(Source{}, &i32, 1));
 
   ast::CaseSelectorList selector_2;
-  selector_2.push_back(create<ast::SintLiteral>(&i32, 2));
+  selector_2.push_back(create<ast::SintLiteral>(Source{}, &i32, 2));
 
   ast::CaseStatementList cases;
   cases.push_back(create<ast::CaseStatement>(selector_1, case_1_body));
@@ -484,11 +484,11 @@ TEST_F(BuilderTest, Switch_CaseFallthroughLastStatement) {
   case_1_body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 1))));
+          create<ast::SintLiteral>(Source{}, &i32, 1))));
   case_1_body->append(create<ast::FallthroughStatement>());
 
   ast::CaseSelectorList selector_1;
-  selector_1.push_back(create<ast::SintLiteral>(&i32, 1));
+  selector_1.push_back(create<ast::SintLiteral>(Source{}, &i32, 1));
 
   ast::CaseStatementList cases;
   cases.push_back(create<ast::CaseStatement>(selector_1, case_1_body));
@@ -545,19 +545,19 @@ TEST_F(BuilderTest, Switch_WithNestedBreak) {
   if_body->append(create<ast::BreakStatement>());
 
   auto* case_1_body = create<ast::BlockStatement>();
-  case_1_body->append(
-      create<ast::IfStatement>(Source{},
-                               create<ast::ScalarConstructorExpression>(
-                                   create<ast::BoolLiteral>(&bool_type, true)),
-                               if_body, ast::ElseStatementList{}));
+  case_1_body->append(create<ast::IfStatement>(
+      Source{},
+      create<ast::ScalarConstructorExpression>(
+          create<ast::BoolLiteral>(Source{}, &bool_type, true)),
+      if_body, ast::ElseStatementList{}));
 
   case_1_body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>(mod->RegisterSymbol("v"), "v"),
       create<ast::ScalarConstructorExpression>(
-          create<ast::SintLiteral>(&i32, 1))));
+          create<ast::SintLiteral>(Source{}, &i32, 1))));
 
   ast::CaseSelectorList selector_1;
-  selector_1.push_back(create<ast::SintLiteral>(&i32, 1));
+  selector_1.push_back(create<ast::SintLiteral>(Source{}, &i32, 1));
 
   ast::CaseStatementList cases;
   cases.push_back(create<ast::CaseStatement>(selector_1, case_1_body));
diff --git a/src/writer/spirv/builder_unary_op_expression_test.cc b/src/writer/spirv/builder_unary_op_expression_test.cc
index 2579b87d75..ab14418639 100644
--- a/src/writer/spirv/builder_unary_op_expression_test.cc
+++ b/src/writer/spirv/builder_unary_op_expression_test.cc
@@ -42,7 +42,7 @@ TEST_F(BuilderTest, UnaryOp_Negation_Integer) {
 
   ast::UnaryOpExpression expr(ast::UnaryOp::kNegation,
                               create<ast::ScalarConstructorExpression>(
-                                  create<ast::SintLiteral>(&i32, 1)));
+                                  create<ast::SintLiteral>(Source{}, &i32, 1)));
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -59,9 +59,10 @@ TEST_F(BuilderTest, UnaryOp_Negation_Integer) {
 TEST_F(BuilderTest, UnaryOp_Negation_Float) {
   ast::type::F32 f32;
 
-  ast::UnaryOpExpression expr(ast::UnaryOp::kNegation,
-                              create<ast::ScalarConstructorExpression>(
-                                  create<ast::FloatLiteral>(&f32, 1)));
+  ast::UnaryOpExpression expr(
+      ast::UnaryOp::kNegation,
+      create<ast::ScalarConstructorExpression>(
+          create<ast::FloatLiteral>(Source{}, &f32, 1)));
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -78,9 +79,10 @@ TEST_F(BuilderTest, UnaryOp_Negation_Float) {
 TEST_F(BuilderTest, UnaryOp_Not) {
   ast::type::Bool bool_type;
 
-  ast::UnaryOpExpression expr(ast::UnaryOp::kNot,
-                              create<ast::ScalarConstructorExpression>(
-                                  create<ast::BoolLiteral>(&bool_type, false)));
+  ast::UnaryOpExpression expr(
+      ast::UnaryOp::kNot,
+      create<ast::ScalarConstructorExpression>(
+          create<ast::BoolLiteral>(Source{}, &bool_type, false)));
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
diff --git a/src/writer/wgsl/generator_impl_array_accessor_test.cc b/src/writer/wgsl/generator_impl_array_accessor_test.cc
index 034051d768..06c76195ea 100644
--- a/src/writer/wgsl/generator_impl_array_accessor_test.cc
+++ b/src/writer/wgsl/generator_impl_array_accessor_test.cc
@@ -32,7 +32,7 @@ using WgslGeneratorImplTest = TestHelper;
 
 TEST_F(WgslGeneratorImplTest, EmitExpression_ArrayAccessor) {
   ast::type::I32 i32;
-  auto* lit = create<ast::SintLiteral>(&i32, 5);
+  auto* lit = create<ast::SintLiteral>(Source{}, &i32, 5);
   auto* idx = create<ast::ScalarConstructorExpression>(lit);
   auto* ary =
       create<ast::IdentifierExpression>(mod.RegisterSymbol("ary"), "ary");
diff --git a/src/writer/wgsl/generator_impl_case_test.cc b/src/writer/wgsl/generator_impl_case_test.cc
index b23348ff5c..1a1a444d0b 100644
--- a/src/writer/wgsl/generator_impl_case_test.cc
+++ b/src/writer/wgsl/generator_impl_case_test.cc
@@ -37,7 +37,7 @@ TEST_F(WgslGeneratorImplTest, Emit_Case) {
   body->append(create<ast::BreakStatement>());
 
   ast::CaseSelectorList lit;
-  lit.push_back(create<ast::SintLiteral>(&i32, 5));
+  lit.push_back(create<ast::SintLiteral>(Source{}, &i32, 5));
   ast::CaseStatement c(lit, body);
 
   gen.increment_indent();
@@ -56,8 +56,8 @@ TEST_F(WgslGeneratorImplTest, Emit_Case_MultipleSelectors) {
   body->append(create<ast::BreakStatement>());
 
   ast::CaseSelectorList lit;
-  lit.push_back(create<ast::SintLiteral>(&i32, 5));
-  lit.push_back(create<ast::SintLiteral>(&i32, 6));
+  lit.push_back(create<ast::SintLiteral>(Source{}, &i32, 5));
+  lit.push_back(create<ast::SintLiteral>(Source{}, &i32, 6));
   ast::CaseStatement c(lit, body);
 
   gen.increment_indent();
diff --git a/src/writer/wgsl/generator_impl_constructor_test.cc b/src/writer/wgsl/generator_impl_constructor_test.cc
index 14da9a1ddb..f945e55de4 100644
--- a/src/writer/wgsl/generator_impl_constructor_test.cc
+++ b/src/writer/wgsl/generator_impl_constructor_test.cc
@@ -37,7 +37,7 @@ using WgslGeneratorImplTest = TestHelper;
 
 TEST_F(WgslGeneratorImplTest, EmitConstructor_Bool) {
   ast::type::Bool bool_type;
-  auto* lit = create<ast::BoolLiteral>(&bool_type, false);
+  auto* lit = create<ast::BoolLiteral>(Source{}, &bool_type, false);
   ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
@@ -46,7 +46,7 @@ TEST_F(WgslGeneratorImplTest, EmitConstructor_Bool) {
 
 TEST_F(WgslGeneratorImplTest, EmitConstructor_Int) {
   ast::type::I32 i32;
-  auto* lit = create<ast::SintLiteral>(&i32, -12345);
+  auto* lit = create<ast::SintLiteral>(Source{}, &i32, -12345);
   ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
@@ -55,7 +55,7 @@ TEST_F(WgslGeneratorImplTest, EmitConstructor_Int) {
 
 TEST_F(WgslGeneratorImplTest, EmitConstructor_UInt) {
   ast::type::U32 u32;
-  auto* lit = create<ast::UintLiteral>(&u32, 56779);
+  auto* lit = create<ast::UintLiteral>(Source{}, &u32, 56779);
   ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
@@ -65,8 +65,8 @@ TEST_F(WgslGeneratorImplTest, EmitConstructor_UInt) {
 TEST_F(WgslGeneratorImplTest, EmitConstructor_Float) {
   ast::type::F32 f32;
   // Use a number close to 1<<30 but whose decimal representation ends in 0.
-  auto* lit =
-      create<ast::FloatLiteral>(&f32, static_cast<float>((1 << 30) - 4));
+  auto* lit = create<ast::FloatLiteral>(Source{}, &f32,
+                                        static_cast<float>((1 << 30) - 4));
   ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
@@ -76,7 +76,7 @@ TEST_F(WgslGeneratorImplTest, EmitConstructor_Float) {
 TEST_F(WgslGeneratorImplTest, EmitConstructor_Type_Float) {
   ast::type::F32 f32;
 
-  auto* lit = create<ast::FloatLiteral>(&f32, -1.2e-5);
+  auto* lit = create<ast::FloatLiteral>(Source{}, &f32, -1.2e-5);
   ast::ExpressionList values;
   values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
@@ -89,7 +89,7 @@ TEST_F(WgslGeneratorImplTest, EmitConstructor_Type_Float) {
 TEST_F(WgslGeneratorImplTest, EmitConstructor_Type_Bool) {
   ast::type::Bool b;
 
-  auto* lit = create<ast::BoolLiteral>(&b, true);
+  auto* lit = create<ast::BoolLiteral>(Source{}, &b, true);
   ast::ExpressionList values;
   values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
@@ -102,7 +102,7 @@ TEST_F(WgslGeneratorImplTest, EmitConstructor_Type_Bool) {
 TEST_F(WgslGeneratorImplTest, EmitConstructor_Type_Int) {
   ast::type::I32 i32;
 
-  auto* lit = create<ast::SintLiteral>(&i32, -12345);
+  auto* lit = create<ast::SintLiteral>(Source{}, &i32, -12345);
   ast::ExpressionList values;
   values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
@@ -115,7 +115,7 @@ TEST_F(WgslGeneratorImplTest, EmitConstructor_Type_Int) {
 TEST_F(WgslGeneratorImplTest, EmitConstructor_Type_Uint) {
   ast::type::U32 u32;
 
-  auto* lit = create<ast::UintLiteral>(&u32, 12345);
+  auto* lit = create<ast::UintLiteral>(Source{}, &u32, 12345);
   ast::ExpressionList values;
   values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
@@ -129,9 +129,9 @@ TEST_F(WgslGeneratorImplTest, EmitConstructor_Type_Vec) {
   ast::type::F32 f32;
   ast::type::Vector vec(&f32, 3);
 
-  auto* lit1 = create<ast::FloatLiteral>(&f32, 1.f);
-  auto* lit2 = create<ast::FloatLiteral>(&f32, 2.f);
-  auto* lit3 = create<ast::FloatLiteral>(&f32, 3.f);
+  auto* lit1 = create<ast::FloatLiteral>(Source{}, &f32, 1.f);
+  auto* lit2 = create<ast::FloatLiteral>(Source{}, &f32, 2.f);
+  auto* lit3 = create<ast::FloatLiteral>(Source{}, &f32, 3.f);
   ast::ExpressionList values;
   values.push_back(create<ast::ScalarConstructorExpression>(lit1));
   values.push_back(create<ast::ScalarConstructorExpression>(lit2));
@@ -152,10 +152,10 @@ TEST_F(WgslGeneratorImplTest, EmitConstructor_Type_Mat) {
   ast::ExpressionList mat_values;
 
   for (size_t i = 0; i < 3; i++) {
-    auto* lit1 =
-        create<ast::FloatLiteral>(&f32, static_cast<float>(1 + (i * 2)));
-    auto* lit2 =
-        create<ast::FloatLiteral>(&f32, static_cast<float>(2 + (i * 2)));
+    auto* lit1 = create<ast::FloatLiteral>(Source{}, &f32,
+                                           static_cast<float>(1 + (i * 2)));
+    auto* lit2 = create<ast::FloatLiteral>(Source{}, &f32,
+                                           static_cast<float>(2 + (i * 2)));
 
     ast::ExpressionList values;
     values.push_back(create<ast::ScalarConstructorExpression>(lit1));
@@ -179,12 +179,12 @@ TEST_F(WgslGeneratorImplTest, EmitConstructor_Type_Array) {
   ast::ExpressionList ary_values;
 
   for (size_t i = 0; i < 3; i++) {
-    auto* lit1 =
-        create<ast::FloatLiteral>(&f32, static_cast<float>(1 + (i * 3)));
-    auto* lit2 =
-        create<ast::FloatLiteral>(&f32, static_cast<float>(2 + (i * 3)));
-    auto* lit3 =
-        create<ast::FloatLiteral>(&f32, static_cast<float>(3 + (i * 3)));
+    auto* lit1 = create<ast::FloatLiteral>(Source{}, &f32,
+                                           static_cast<float>(1 + (i * 3)));
+    auto* lit2 = create<ast::FloatLiteral>(Source{}, &f32,
+                                           static_cast<float>(2 + (i * 3)));
+    auto* lit3 = create<ast::FloatLiteral>(Source{}, &f32,
+                                           static_cast<float>(3 + (i * 3)));
 
     ast::ExpressionList values;
     values.push_back(create<ast::ScalarConstructorExpression>(lit1));
diff --git a/src/writer/wgsl/generator_impl_switch_test.cc b/src/writer/wgsl/generator_impl_switch_test.cc
index 732998fdbe..dfa38afe20 100644
--- a/src/writer/wgsl/generator_impl_switch_test.cc
+++ b/src/writer/wgsl/generator_impl_switch_test.cc
@@ -38,7 +38,7 @@ TEST_F(WgslGeneratorImplTest, Emit_Switch) {
 
   ast::type::I32 i32;
   ast::CaseSelectorList case_val;
-  case_val.push_back(create<ast::SintLiteral>(&i32, 5));
+  case_val.push_back(create<ast::SintLiteral>(Source{}, &i32, 5));
 
   auto* case_body = create<ast::BlockStatement>();
   case_body->append(create<ast::BreakStatement>());