[gcc(refs/users/aoliva/heads/testme)] [libstdc++] xfail noreplace tests on vxworks

[Alexandre Oliva]

https://gcc.gnu.org/g:d310aa27168fef00664081fa96556a03a43f0ca1

commit d310aa27168fef00664081fa96556a03a43f0ca1
Author: Alexandre Oliva <oliva@adacore.com>
Date:   Thu Feb 23 10:30:20 2023 -0300

    [libstdc++] xfail noreplace tests on vxworks
    
    vxworks ignores O_EXCL in open, so noreplace open succeeds when it is
    expected to fail.  xfail the tests.
    
    
    for  libstdc++-v3/ChangeLog
    
            * testsuite/27_io/basic_ofstream/open/char/noreplace.cc: xfail
            on vxworks.
            * testsuite/27_io/basic_ofstream/open/wchar_t/noreplace.cc:
            Likewise.

Diff: