[Bug libstdc++/113460] Segfault in __builtin_coro_destroy when using std::generator to concate ranges

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113460

--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
It was fixed on trunk by r15-3203-g5cca7517c5868b:

    c++/coros: do not assume coros don't nest [PR113457]