[Bug libstdc++/90220] std::any_cast misbehaves for function and array types

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90220

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The first example compiles OK on trunk now, the second isn't fixed yet.