[PATCH] Remove XFAIL from test that no longer fails

[Jonathan Wakely]

This test started passing with the old ABI with r263808, so doesn't need
to be marked XFAIL now.

        * testsuite/21_strings/basic_string/requirements/
        explicit_instantiation/debug.cc: Remove XFAIL for old ABI.

Tested x86_64-linux, committed to trunk.


commit c44a290e8ace25ec3ff2f3adcbd859a7f002d3f8
Author: Jonathan Wakely <jwak...@redhat.com>
Date:   Fri Jan 4 16:04:49 2019 +0000

    Remove XFAIL from test that no longer fails
    
    This test started passing with the old ABI with r263808, so doesn't need
    to be marked XFAIL now.
    
            * testsuite/21_strings/basic_string/requirements/
            explicit_instantiation/debug.cc: Remove XFAIL for old ABI.

diff --git 
a/libstdc++-v3/testsuite/21_strings/basic_string/requirements/explicit_instantiation/debug.cc
 
b/libstdc++-v3/testsuite/21_strings/basic_string/requirements/explicit_instantiation/debug.cc
index a0bfa6759cc..5e5642e847e 100644
--- 
a/libstdc++-v3/testsuite/21_strings/basic_string/requirements/explicit_instantiation/debug.cc
+++ 
b/libstdc++-v3/testsuite/21_strings/basic_string/requirements/explicit_instantiation/debug.cc
@@ -20,7 +20,6 @@
 #include <debug/string>
 
 // { dg-do compile }
-// { dg-xfail-if "COW string missing some required members" { ! cxx11-abi } }
 
 // libstdc++/21770
 namespace debug = __gnu_debug;