[Bug c++/121916] GCC rejects variable/function template declarations of fully qualified-ids with parentheses

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121916

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
It is rejected with -std=c++20 but accepted with -std=c++17.  Maybe there is a
rule change.