[Bug c++/105967] Forming a pointer to ref-qualified member function using a function typedef ignores the qualifier

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105967

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note it looks like the pointer to member function type is where it loses the
ref-qualifer and not earlier.
That is GCC correctly rejects:
    using F = void() &; 
    F t;