[Bug c++/80227] [5/6/7/8 Regression] SFINAE ambiguity with a pointer to array argument

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80227

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Idiomatic C++ code should not warn.

Clang and ICC accept the former and reject the latter. VC++ rejects both, which
is odd.