Attempt to make locale visible in gdb.
* include/bits/std_locale.h: Remove codecvt.h include.
* include/bits/locale_facets.h: Add here, after ctype decls.
* include/bits/codecvt.h: Remove std namespace, as assumed to be
in std now.
* include/bits/locale_facets.h: Consistently move generic static
member definitions directly after generic facet declarations.
* include/bits/locale_facets.tcc: From here.
* src/locale.cc: Organize locale::id static definitions for
required facets.
* src/codecvt.cc (codecvt<char...>): Remove locale::id definition.
(codecvt<wchar_t...>): Same.
* src/localename: And here.
* include/bits/localefwd.h (_Count_ones): Change _S_count to _M_count.
Same for _M_halfcount.
From-SVN: r38450
