[Bug c++/118365] try to define an overloaded function template for a namespace, without having first declared it in that namespace

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118365

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Dup of PR 97174, or at least related.

Oh, I see Andrew already found that :)