[clang] [HLSL] Implement `SpirvType` and `SpirvOpaqueType` (PR #134034)

[Cassandra Beckley via cfe-commits]

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@@ -3332,6 +3388,39 @@ checkBuiltinTemplateIdType(Sema &SemaRef, BuiltinTemplateDecl *BTD,
     }
     return HasNoTypeMember;
   }
+
+  case BTK__hlsl_spirv_type: {
+    assert(Converted.size() == 4);
+
+    if (!Context.getTargetInfo().getTriple().isSPIRV()) {
+      SemaRef.Diag(TemplateLoc, diag::err_hlsl_spirv_only)
+          << "__hlsl_spirv_type";
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cassiebeckley wrote:

Done.

https://github.com/llvm/llvm-project/pull/134034