[clang] Implement resource binding type prefix mismatch errors (PR #87578)

[Justin Bogner via cfe-commits]

================
@@ -7367,8 +7367,72 @@ static void handleHLSLResourceBindingAttr(Sema &S, Decl 
*D,
     return;
   }
 
-  // FIXME: check reg type match decl. Issue
-  // https://github.com/llvm/llvm-project/issues/57886.
+  VarDecl *VD = dyn_cast<VarDecl>(D);
+  HLSLBufferDecl *BD = dyn_cast<HLSLBufferDecl>(D);
+
+  if (VD || BD) {
+    llvm::hlsl::ResourceClass RC;
+    std::string varTy = "";
+    if (VD) {
+
+      const Type *Ty = VD->getType()->getPointeeOrArrayElementType();
+      if (!Ty)
+        return;
+      QualType t = ((ElaboratedType *)Ty)->getNamedType();
----------------
bogner wrote:

Avoid C-style cast

https://github.com/llvm/llvm-project/pull/87578
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