* objc/hash.h: Moved into objc/deprecated/hash.h; objc/hash.h
        replaced with a placeholder including the file from the
        deprecated/ directory.
        * objc/objc-api.h: Updated includes.
        * objc/typedstream.h: Updated includes.
        * objc-private/hash.h: New file (private copy of hash.h).
        * objc/objc-list.h: Moved into objc/deprecated/objc-list.h;
        objc/objc-list.h replaced with a placeholder including the file
        from the deprecated/ directory.
        * objc-private/objc-list.h: New file (private copy of objc-list.h).
        * init.c: Include objc-private/hash.h and objc-private/objc-list.h
        instead of objc/hash.h and objc/objc-list.h.
        * selector.c: Same change.
        * class.c: Added include <string.h>, which used to be implicitly included
        when hash.h was included.
        * exception.c: Same change.
        * objects.c: Same change.
        * sarray.c: Same change.
        * sendmsg.c: Same change.
        * Makefile.in (OBJC_DEPRECATED_H): Added hash.h and objc-list.h.
        (OBJC_H): Removed hash.h and objc-list.h

From-SVN: r164373