[clang] [HLSL] Collect explicit resource binding information (PR #111203)

[Helena Kotas via cfe-commits]

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@@ -115,12 +114,14 @@ struct Eg13{
   MySRV s1;
   MySRV s2;
 };
-// expected-warning at +4{{binding type 'u' only applies to types containing UAV resources}}
 // expected-warning at +3{{binding type 'u' only applies to types containing UAV resources}}
-// expected-warning at +2{{binding type 'u' only applies to types containing UAV resources}}
+// expected-error at +2{{binding type 'u' cannot be applied more than once}}
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hekota wrote:

Since there are 2 extra 'u' bindings we should be reporting 2 errors.

https://github.com/llvm/llvm-project/pull/111203