[Bug c++/85576] A template union containing a friend function causes non-template type used as a template error

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85576

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Looks fixed in GCC 11+.