[PATCH] libstdc++: Skip 91371.cc for x32.

[Jonathan Wakely]

On 13/03/20 20:38 +0100, Uros Bizjak via Libstdc++ wrote:
>x32 does not support MS ABI, skip testcases that require it.
>
>2020-03-13  Uroš Bizjak  <ubizjak@gmail.com>
>
>    * testsuite/20_util/bind/91371.cc: Skip for x32.
>    * testsuite/20_util/is_function/91371.cc: Ditto.
>    * testsuite/20_util/is_member_function_pointer/91371.cc: Ditto.
>    * testsuite/20_util/is_object/91371.cc: Ditto.
>
>Tested on x86_64-linux-gnu {,-mx32}.
>
>Fixes -mx32 libstdc++ failures in [1].
>
>OK for mainline?

OK, thanks.