The `grouping` string for locale `en_US.UTF-8` and `fr_FR.UTF-8` on AIX is `3`. This is different from Linux's `3;3` but is the same as Windows. This patch removes `XFAIL: LIBCXX-AIX-FIXME` and changes to use the `WIN32` code path.
The `grouping` string for locale `en_US.UTF-8` and `fr_FR.UTF-8` on AIX is `3`. This is different from Linux's `3;3` but is the same as Windows. This patch removes `XFAIL: LIBCXX-AIX-FIXME` and changes to use the `WIN32` code path.