[Bug libstdc++/64797] 22_locale/conversions/string/2.cc FAILs

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64797

--- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> ---
No, I'm switching the test to use either char16_t or char32_t instead of
wchar_t, because that definitely causes a conversion error (instead of
depending on the native character set used by wchar_t). Doing that revealed a
bug in the Unicode conversion routines which I'm just fixing right this second
:-)