tint: Fix indentation in code templates

41e4d9a34 adjusted the tab indentation from 2 to 4 whitespaces.
Apply this to the templates so that regenerating these produce no diffs.

Bug: dawn:1339
Change-Id: Ib49e0d72b563558fbe2120d3db5754716eb1a4f6
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/88663
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>

src/tint/sem/builtin_type.cc.tmpl

@@ -16,28 +16,28 @@ namespace tint::sem {
 
 BuiltinType ParseBuiltinType(const std::string& name) {
 {{- range .Sem.Functions  }}
-  if (name == "{{.Name}}") {
-    return BuiltinType::k{{Title .Name}};
-  }
+    if (name == "{{.Name}}") {
+        return BuiltinType::k{{Title .Name}};
+    }
 {{- end  }}
-  return BuiltinType::kNone;
+    return BuiltinType::kNone;
 }
 
 const char* str(BuiltinType i) {
-  switch (i) {
-    case BuiltinType::kNone:
-      return "<none>";
+    switch (i) {
+        case BuiltinType::kNone:
+            return "<none>";
 {{- range .Sem.Functions  }}
-    case BuiltinType::k{{Title .Name}}:
-      return "{{.Name}}";
+        case BuiltinType::k{{Title .Name}}:
+            return "{{.Name}}";
 {{- end  }}
-  }
-  return "<unknown>";
+    }
+    return "<unknown>";
 }
 
 std::ostream& operator<<(std::ostream& out, BuiltinType i) {
-  out << str(i);
-  return out;
+    out << str(i);
+    return out;
 }
 
 }  // namespace tint::sem

src/tint/sem/builtin_type.h.tmpl

@@ -18,9 +18,9 @@ namespace tint::sem {
 
 /// Enumerator of all builtin functions
 enum class BuiltinType {
-  kNone = -1,
+    kNone = -1,
 {{- range .Sem.Functions }}
-  k{{Title .Name}},
+    k{{Title .Name}},
 {{- end }}
 };
 

src/tint/sem/parameter_usage.cc.tmpl

@@ -13,15 +13,15 @@ See:
 namespace tint::sem {
 
 const char* str(ParameterUsage usage) {
-  switch (usage) {
-    case ParameterUsage::kNone:
-      return "none";
+    switch (usage) {
+        case ParameterUsage::kNone:
+            return "none";
 {{- range .Sem.UniqueParameterNames  }}
-    case ParameterUsage::k{{PascalCase .}}:
-      return "{{.}}";
+        case ParameterUsage::k{{PascalCase .}}:
+            return "{{.}}";
 {{- end  }}
-  }
-  return "<unknown>";
+    }
+    return "<unknown>";
 }
 
 }  // namespace tint::sem

src/tint/sem/parameter_usage.h.tmpl

@@ -16,9 +16,9 @@ namespace tint::sem {
 /// ParameterUsage is extra metadata for identifying a parameter based on its
 /// overload position
 enum class ParameterUsage {
-  kNone = -1,
+    kNone = -1,
 {{- range .Sem.UniqueParameterNames  }}
-  k{{PascalCase .}},
+    k{{PascalCase .}},
 {{- end  }}
 };