[clang] Implement resource binding type prefix mismatch flag setting logic (PR #97103)

[Damyan Pepper via cfe-commits]

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@@ -12303,7 +12303,10 @@ def err_hlsl_missing_semantic_annotation : Error<
 def err_hlsl_init_priority_unsupported : Error<
   "initializer priorities are not supported in HLSL">;
 
-def err_hlsl_unsupported_register_type : Error<"invalid resource class specifier '%0' used; expected 'b', 's', 't', or 'u'">;
+def err_hlsl_mismatching_register_resource_type_and_name: Error<"invalid register name prefix '%0' for register resource type '%1' (expected %select{'t'|'u'|'b'|'s'}2)">;
+def err_hlsl_mismatching_register_builtin_type_and_name: Error<"invalid register name prefix '%0' for '%1' (expected %2)">;
+def err_hlsl_unsupported_register_prefix : Error<"invalid resource class specifier '%0' used; expected 't', 'u', 'b', or 's'">;
+def err_hlsl_unsupported_register_resource_type : Error<"invalid resource '%0' used">;
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damyanp wrote:

I only see `err_hlsl_unsupported_register_prefix` referenced in the code.  `err_hlsl_unsupported_register_resource_type` is in some code that's commented out.  The two mismatching ones don't appear in the code at all.

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