[clang] [HLSL] Initialize DiagnoseHLSLAvailability members (PR #100778)

[Xiang Li via cfe-commits]

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@@ -650,7 +650,10 @@ class DiagnoseHLSLAvailability
   bool HasMatchingEnvironmentOrNone(const AvailabilityAttr *AA);
 
 public:
-  DiagnoseHLSLAvailability(Sema &SemaRef) : SemaRef(SemaRef) {}
+  DiagnoseHLSLAvailability(Sema &SemaRef)
+      : SemaRef(SemaRef),
+        CurrentShaderEnvironment(llvm::Triple::UnknownEnvironment),
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python3kgae wrote:

Environment could be gotten from SemaRef.getASTContext().getTargetInfo().getTriple().getEnvironment().

https://github.com/llvm/llvm-project/pull/100778