[Bug c++/114303] [11/12/13/14 Regression] ICE with constexpr if and accessing captures across nested generic lambdas

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114303

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note the static_assert is not needed, it could just be
`decltype(level1)::value` even.