[Bug c/105939] "warning: anonymous struct declared inside parameter list will not be visible outside of this definition or declaration" should have a warning flag attached to it

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105939

--- Comment #4 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Samuel Bronson from comment #3)
> Should this be under -Wvisibiliy or
> no? https://clang.llvm.org/docs/DiagnosticsReference.html#wvisibility

That sounds fine to me.