[clang] [HLSL] get inout/out ABI for array parameters working (PR #111047)

[Chris B via cfe-commits]

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@@ -3830,6 +3830,16 @@ QualType ASTContext::getDecayedType(QualType T) const {
   return getDecayedType(T, Decayed);
 }
 
+QualType ASTContext::getConstantArrayFromArrayParameterType(QualType Ty) const {
+  if (Ty->isConstantArrayType() && !Ty->isArrayParameterType())
+    return Ty;
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llvm-beanz wrote:

The name of this method implies that it would be wrong to call this with anything other than an `ArrayParameterType`.

Maybe it makes sense to make this a method on the ArrayParameterType so that you can operate on `this` knowing it is the correct type?

https://github.com/llvm/llvm-project/pull/111047