[Bug c++/120532] diagnostic_context::diagnostic_impl ICE in refwrap.h

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120532

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Slightly reduced:
```
#include <functional>

using my_func = void(int) &&;

int main()
{
        std::reference_wrapper<my_func> a;
}
```