[Bug c++/66934] Compiler accepting ill-formed program with extern variable declarations and using-declaration

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66934

--- Comment #9 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Anders Granlund from comment #4)
> I'm pulling in this test case from my related bug report.
> 
>   int x = 1;
> 
>   int main() {
>       extern int x;
>       using ::x;
>   }

This is unrelated to the first testcase though.