Fix <wctype.h>.
* Fix the return type of towlower_l/towupper_l.
* Implement wctrans/wctrans_l/towctrans/towctrans_l.
* Move declarations that POSIX says are available from both <wchar.h> and
<wctype.h> to <bits/wctype.h> and include from both POSIX headers.
* Write the missing tests.
Change-Id: I3221da5f3d7e8a2fb0a7619dc724de45f7b55398
diff --git a/libc/libc.x86.map b/libc/libc.x86.map
index f6b6ea1..bab1737 100644
--- a/libc/libc.x86.map
+++ b/libc/libc.x86.map
@@ -1273,6 +1273,10 @@
sigrelse;
sigset;
sync_file_range;
+ towctrans;
+ towctrans_l;
+ wctrans;
+ wctrans_l;
} LIBC_N;
LIBC_PRIVATE {