[Bug c++/127316] [reflection] ICE redeclaring a function whose return type involves a reflection of a parameter variable

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127316

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
auto f(int a) -> constant_wrapper<^^f>;
auto f(int a) -> constant_wrapper<^^f>;
is similarly questionable.  Are those ^^f in both cases supposed to compare the
same or not?  Whether they are valid redeclarations depends on whether ^^f is
the same, but whether it is the same depends on whether they are valid
redeclarations.