Update tools/clang/lib/Sema/SemaHLSL.cpp

Co-authored-by: Greg Roth <[email protected]>

Author: simoll

tools/clang/lib/Sema/SemaHLSL.cpp

@@ -12166,6 +12166,11 @@ static bool AllowObjectInContext(QualType Ty, TypeDiagContext DiagContext) {
   return true;
 }
 
+// Determine if `Ty` is valid and/or empty.  If invalid returns false and Sema `S`, location `Loc`,
+// error index `DiagContext`, and FieldDecl `FD` are used to emit diagnostics.
+// If `CheckLongVec` is set, errors are produced if `Ty` is a long vector.
+// If the type is not empty, `Empty` is set to false.
+// `CheckedDecls` is used to prevent redundant recursive type checks.
 static bool
 DiagnoseElementTypes(Sema &S, SourceLocation Loc, QualType Ty, bool &Empty,
                      bool CheckLongVec, TypeDiagContext DiagContext,