[Bug libstdc++/84998] [8 Regression] std::hash> fails in Debug Mode

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84998

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The change happened with r255780 i.e. PR c++/59930

I'll make the necessary fixes to libstdc++.