[Bug target/64368] [5 Regression] Several libstdc++ test failures on non-linux platforms after r218964.

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64368

--- Comment #24 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> > ...
> > FAIL: 30_threads/shared_timed_mutex/try_lock/2.cc (test for excess errors)
>
> Fixed by r220161

Confirmed. PR fixed before being opened!-)

> > FAIL: experimental/feat-cxx14.cc (test for excess errors)
>
> Maybe also fixed by r220161

Yes. Remaining after r220161 PR 64797 and PR 64813.