[Bug libstdc++/85821] [DR 2383] Chrono literal operators do not follow the standard declarations

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85821

--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Andrey Bolshakov from comment #5)
> In principle, since C++20, you could use consteval to make the
> implementation better corresponding to the current contradictory
> requirements of the standard:

See the proposed resolution of https://wg21.link/lwg2383