* testsuite/22_locale/codecvt_unicode_char.cc: Don't run it
if not _GLIBCPP_USE_WCHAR_T.
* testsuite/22_locale/codecvt_unicode_wchar_t.cc: Likewise.
* testsuite/22_locale/ctor_copy_dtor.cc: Likewise.
* testsuite/22_locale/ctype_wchar_t_members.cc: Likewise.
From-SVN: r37216