[Bug libstdc++/103726] --disable-hosted-libstdcxx (freestanding C++) does not provide <coroutine> as what standard requires

[unlvsur at live dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103726

--- Comment #1 from cqwrteur <unlvsur at live dot com> ---
also here is a weird thing i find.

coroutine_handle has a template specification of std::hash, but std::hash is in
<functional> which is not freestanding.

What should standard library do? Should libstdc++ provide it or not?