[clang] Implement resource binding type prefix mismatch diagnostic infrastructure (PR #97103)

[Helena Kotas via cfe-commits]

================
@@ -459,7 +467,412 @@ void SemaHLSL::handleResourceClassAttr(Decl *D, const 
ParsedAttr &AL) {
   D->addAttr(HLSLResourceClassAttr::Create(getASTContext(), RC, ArgLoc));
 }
 
-void SemaHLSL::handleResourceBindingAttr(Decl *D, const ParsedAttr &AL) {
+struct RegisterBindingFlags {
+  bool Resource = false;
+  bool UDT = false;
+  bool Other = false;
+  bool Basic = false;
+
+  bool SRV = false;
+  bool UAV = false;
+  bool CBV = false;
+  bool Sampler = false;
+
+  bool ContainsNumeric = false;
+  bool DefaultGlobals = false;
+};
+
+static bool isDeclaredWithinCOrTBuffer(const Decl *TheDecl) {
+  if (!TheDecl)
+    return false;
+
+  // Traverse up the parent contexts
+  const DeclContext *context = TheDecl->getDeclContext();
+  if (isa<HLSLBufferDecl>(context)) {
+    return true;
+  }
+
+  return false;
----------------
hekota wrote:

```suggestion
  return TheDecl && isa<HLSLBufferDecl>(TheDecl->getDeclContext());
```

https://github.com/llvm/llvm-project/pull/97103
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