[Bug c++/67013] Compilation error for well-formed program with empty declaration in the global namespace

[anders.granlund.0 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67013

--- Comment #2 from Anders Granlund <anders.granlund.0 at gmail dot com> ---
That comment seems to be incorrect. The c++ standard has never forbidden empty
declarations at global namespace. I think we should get a warning instead of an
error.