[PATCH] Fix coroutine tests for libstdc++ gnu-version-namespace mode

[François Dumont]

Hi

Gentle reminder for this minor patch.

Thanks

On 23/09/2023 22:10, François Dumont wrote:
> I'm eventually fixing those tests the same way we manage this problem 
> in libstdc++ testsuite.
>
>    testsuite: Add optional libstdc++ version namespace in expected 
> diagnostic
>
>     When libstdc++ is build with 
> --enable-symvers=gnu-versioned-namespace diagnostics are
>     showing this namespace, currently __8.
>
>     gcc/testsuite/ChangeLog:
>
>             * 
> testsuite/g++.dg/coroutines/coro-bad-alloc-00-bad-op-new.C: Add optional
>             '__8' version namespace in expected diagnostic.
>             * 
> testsuite/g++.dg/coroutines/coro-bad-alloc-01-bad-op-del.C: Likewise.
>             * 
> testsuite/g++.dg/coroutines/coro-bad-alloc-02-no-op-new-nt.C: Likewise.
>             * 
> testsuite/g++.dg/coroutines/coro-bad-grooaf-01-grooaf-expected.C: 
> Likewise.
>             * testsuite/g++.dg/coroutines/pr97438.C: Likewise.
>             * testsuite/g++.dg/coroutines/ramp-return-b.C: Likewise.
>
> Tested under Linux x86_64.
>
> I'm contributing to libstdc++ so I already have write access.
>
> Ok to commit ?
>
> François