Rename CloneContext::mod to CloneContext::dst

In the future, CloneContext will be operating on `Program`s so a field called `mod` is poorly named.
CloneContext has a `src` member, so rename to `dst` to keep symmetry.

Bug: tint:390
Change-Id: Ic724f8a18b46ef719790394cdc810f7eb3681234
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/38364
Commit-Queue: David Neto <dneto@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>

src/type/access_control_type.cc

@@ -59,7 +59,7 @@ uint64_t AccessControl::BaseAlignment(MemoryLayout mem_layout) const {
 }
 
 AccessControl* AccessControl::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<AccessControl>(access_, ctx->Clone(subtype_));
+  return ctx->dst->create<AccessControl>(access_, ctx->Clone(subtype_));
 }
 
 }  // namespace type

src/type/alias_type.cc

@@ -46,7 +46,7 @@ uint64_t Alias::BaseAlignment(MemoryLayout mem_layout) const {
 }
 
 Alias* Alias::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<Alias>(ctx->Clone(symbol()), ctx->Clone(subtype_));
+  return ctx->dst->create<Alias>(ctx->Clone(symbol()), ctx->Clone(subtype_));
 }
 
 }  // namespace type

src/type/array_type.cc

@@ -96,7 +96,7 @@ std::string Array::type_name() const {
 }
 
 Array* Array::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<Array>(ctx->Clone(subtype_), size_,
+  return ctx->dst->create<Array>(ctx->Clone(subtype_), size_,
                                  ctx->Clone(decorations()));
 }
 

src/type/bool_type.cc

@@ -33,7 +33,7 @@ std::string Bool::type_name() const {
 }
 
 Bool* Bool::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<Bool>();
+  return ctx->dst->create<Bool>();
 }
 
 }  // namespace type

src/type/depth_texture_type.cc

@@ -52,7 +52,7 @@ std::string DepthTexture::type_name() const {
 }
 
 DepthTexture* DepthTexture::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<DepthTexture>(dim());
+  return ctx->dst->create<DepthTexture>(dim());
 }
 
 }  // namespace type

src/type/f32_type.cc

@@ -41,7 +41,7 @@ uint64_t F32::BaseAlignment(MemoryLayout) const {
 }
 
 F32* F32::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<F32>();
+  return ctx->dst->create<F32>();
 }
 
 }  // namespace type

src/type/i32_type.cc

@@ -41,7 +41,7 @@ uint64_t I32::BaseAlignment(MemoryLayout) const {
 }
 
 I32* I32::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<I32>();
+  return ctx->dst->create<I32>();
 }
 
 }  // namespace type

src/type/matrix_type.cc

@@ -56,7 +56,7 @@ uint64_t Matrix::BaseAlignment(MemoryLayout mem_layout) const {
 }
 
 Matrix* Matrix::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<Matrix>(ctx->Clone(subtype_), rows_, columns_);
+  return ctx->dst->create<Matrix>(ctx->Clone(subtype_), rows_, columns_);
 }
 
 }  // namespace type

src/type/multisampled_texture_type.cc

@@ -41,7 +41,7 @@ std::string MultisampledTexture::type_name() const {
 }
 
 MultisampledTexture* MultisampledTexture::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<MultisampledTexture>(dim(), ctx->Clone(type_));
+  return ctx->dst->create<MultisampledTexture>(dim(), ctx->Clone(type_));
 }
 
 }  // namespace type

src/type/pointer_type.cc

@@ -36,7 +36,7 @@ Pointer::Pointer(Pointer&&) = default;
 Pointer::~Pointer() = default;
 
 Pointer* Pointer::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<Pointer>(ctx->Clone(subtype_), storage_class_);
+  return ctx->dst->create<Pointer>(ctx->Clone(subtype_), storage_class_);
 }
 
 }  // namespace type

src/type/sampled_texture_type.cc

@@ -41,7 +41,7 @@ std::string SampledTexture::type_name() const {
 }
 
 SampledTexture* SampledTexture::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<SampledTexture>(dim(), ctx->Clone(type_));
+  return ctx->dst->create<SampledTexture>(dim(), ctx->Clone(type_));
 }
 
 }  // namespace type

src/type/sampler_type.cc

@@ -46,7 +46,7 @@ std::string Sampler::type_name() const {
 }
 
 Sampler* Sampler::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<Sampler>(kind_);
+  return ctx->dst->create<Sampler>(kind_);
 }
 
 }  // namespace type

src/type/storage_texture_type.cc

@@ -163,7 +163,7 @@ std::string StorageTexture::type_name() const {
 }
 
 StorageTexture* StorageTexture::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<StorageTexture>(dim(), image_format_);
+  return ctx->dst->create<StorageTexture>(dim(), image_format_);
 }
 
 }  // namespace type

src/type/struct_type.cc

@@ -83,7 +83,7 @@ uint64_t Struct::BaseAlignment(MemoryLayout mem_layout) const {
 }
 
 Struct* Struct::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<Struct>(ctx->Clone(symbol()), ctx->Clone(struct_));
+  return ctx->dst->create<Struct>(ctx->Clone(symbol()), ctx->Clone(struct_));
 }
 
 }  // namespace type

src/type/u32_type.cc

@@ -41,7 +41,7 @@ uint64_t U32::BaseAlignment(MemoryLayout) const {
 }
 
 U32* U32::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<U32>();
+  return ctx->dst->create<U32>();
 }
 
 }  // namespace type

src/type/vector_type.cc

@@ -53,7 +53,7 @@ uint64_t Vector::BaseAlignment(MemoryLayout mem_layout) const {
 }
 
 Vector* Vector::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<Vector>(ctx->Clone(subtype_), size_);
+  return ctx->dst->create<Vector>(ctx->Clone(subtype_), size_);
 }
 
 }  // namespace type

src/type/void_type.cc

@@ -33,7 +33,7 @@ std::string Void::type_name() const {
 }
 
 Void* Void::Clone(CloneContext* ctx) const {
-  return ctx->mod->create<Void>();
+  return ctx->dst->create<Void>();
 }
 
 }  // namespace type