[Bug c++/55402] Compiling large initializer lists never finishes

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55402

--- Comment #12 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Similar to PR 56671 but -fno-exceptions doesn't help there, the issue is that
the initializer-list is in a constexpr constructor.