[Bug c++/65047] [c++17] Add support for nested namespace defintions.

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65047

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED
   Target Milestone|---                         |6.0

--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Done for GCC 6.

https://gcc.gnu.org/projects/cxx-status.html