[clang] [HLSL] Add empty struct test cases to `__builtin_hlsl_is_typed_resource_element_compatible` test file (PR #115045)

[Chris B via cfe-commits]

================
@@ -2200,47 +2200,43 @@ static void BuildFlattenedTypeList(QualType BaseTy,
 }
 
 bool SemaHLSL::IsTypedResourceElementCompatible(clang::QualType QT) {
-  if (QT.isNull())
+  // null and array types are not allowed.
+  if (QT.isNull() || QT->isArrayType())
     return false;
 
-  // check if the outer type was an array type
-  if (QT->isArrayType())
+  // UDT types are not allowed
+  clang::QualType CanonicalType = QT.getCanonicalType();
+  if (CanonicalType->getAs<clang::RecordType>()) {
     return false;
+  }
----------------
llvm-beanz wrote:

nit: https://llvm.org/docs/CodingStandards.html#don-t-use-braces-on-simple-single-statement-bodies-of-if-else-loop-statements
```suggestion
  if (CanonicalType->getAs<clang::RecordType>())
    return false;
```

https://github.com/llvm/llvm-project/pull/115045