[clang] [HLSL] Remove support for constructors for user defined structs (PR #190089)

[Sarah Spall via cfe-commits]

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@@ -68,6 +68,7 @@ struct Fish {
 
   // expected-note at +1 {{'->' applied to return value of the operator->() declared here}}
   Fins operator ->() {
+    // expected-error at +1 {{no matching constructor for initialization of 'Fins'}}
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spall wrote:

Yeah that could probably be something better.  Unsure what we want the error to be though. Something like "HLSL doesn't support constructors"?

https://github.com/llvm/llvm-project/pull/190089