LibC: Change wctrans_t to be a long instead of int*

The POSIX manpage just says that wctrans_t should be "a scalar type that
can hold values which represent locale-specific character mappings", and
doing switch statements with ints is much more pleasant than with
pointers.

Userland/Libraries/LibC/wctype.h

@@ -12,7 +12,7 @@
 
 __BEGIN_DECLS
 
-typedef const int* wctrans_t;
+typedef long wctrans_t;
 
 int iswalnum(wint_t wc);
 int iswalpha(wint_t wc);