[Bug c++/110106] [11/12/13/14 Regression] ICE on noexcept(noexcept(...)) with optional

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110106

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Reduced testcase:
```
template <int> struct j{ };
struct g {g(j<0>);};
void y(j<0> z) noexcept(noexcept(g{z}));
```