[Bug libstdc++/109165] std::hash<coroutine_handle<>>::operator() should be const

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109165

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-12 branch has been updated by Jonathan Wakely
<redi@gcc.gnu.org>:

https://gcc.gnu.org/g:2a9e6f58c4d9d63dde6c4d53d10f686bf71fb435

commit r12-9296-g2a9e6f58c4d9d63dde6c4d53d10f686bf71fb435
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Fri Mar 17 11:39:55 2023 +0000

    libstdc++: Add const to hash<coroutine_handle<P>>::operator() [PR109165]

    libstdc++-v3/ChangeLog:

            PR libstdc++/109165
            * include/std/coroutine (hash<>::operator()): Add const.
            * testsuite/18_support/coroutines/hash.cc: New test.