[clang] [HLSL] Change default linkage of HLSL functions and groupshared variables (v2) (PR #95331)

[Helena Kotas via cfe-commits]

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@@ -967,6 +967,10 @@ static void checkUndefinedButUsed(Sema &S) {
                            Func->getIdentifier()->isMangledOpenMPVariantName();
         }
       }
+      // Do not warn on undefined internal functions in HLSL, they will get
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hekota wrote:

Good catch! I will bring the warning back and modify tests that hit it.

https://github.com/llvm/llvm-project/pull/95331