Update clang/include/clang/Driver/Options.td

Co-authored-by: Sirraide <[email protected]>

Author: changkhothuychung

clang/include/clang/Driver/Options.td

@@ -3693,7 +3693,7 @@ defm reflection : BoolFOption<"reflection",
   LangOpts<"Reflection">, DefaultFalse,
   PosFlag<SetTrue, [], [ClangOption, CC1Option],
           "Enable C++26 reflection">,
-  NegFlag<SetFalse>>;
+  NegFlag<SetFalse>>, ShouldParseIf<cplusplus.KeyPath>;
 defm sized_deallocation : BoolFOption<"sized-deallocation",
   LangOpts<"SizedDeallocation">, Default<cpp14.KeyPath>,
   PosFlag<SetTrue, [], [], "Enable C++14 sized global deallocation functions">,