[clang] [HLSL] Strict Availability Diagnostics (PR #93860)

[Helena Kotas via cfe-commits]

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@@ -210,13 +222,16 @@ static bool ShouldDiagnoseAvailabilityInContext(
   return true;
 }
 
-static bool
-shouldDiagnoseAvailabilityByDefault(const ASTContext &Context,
-                                    const VersionTuple &DeploymentVersion,
-                                    const VersionTuple &DeclVersion) {
+static unsigned getAvailabilityDiagnosticKind(
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hekota wrote:

I am not sure if it is the best, but that's what `SemaBase::Diag` method takes :)

https://github.com/llvm/llvm-project/pull/93860