[Bug c++/93103] Generic function syntax does not check return concept

[mateusz.pusz at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93103

--- Comment #4 from Mateusz Pusz <mateusz.pusz at gmail dot com> ---
I am so sorry. My bad. You are right. It seems to be fixed indeed.