* Makefile.in (LIBCPP_DEPS): Remove coretypes.h and $(TM_H).
	(hashtable.o, line-map.o, mkdeps.o): Likewise, from dependency
	list.  Move these all together down by cpplib.

	* cpplib.h: Don't refer to MAX_WCHAR_TYPE_SIZE when determining
	definition of CPPCHAR_SIGNED_T.

	* cppcharset.c, cpperror.c, cppexp.c, cppfiles.c, cpphash.c, cppinit.c
	* cpplex.c, cpplib.c, cppmacro.c, cpppch.c, cpptrad.c, hashtable.c
	* line-map.c, mkdeps.c: Don't include coretypes.h or tm.h.

	* cpphash.c (_cpp_init_hashtable): Don't use gcc_obstack_init.
	* cppinit.c (cpp_create_reader): Likewise.

	* cpphash.h (scan_out_logical_line): Rename _cpp_scan_out_logical_line.
	* cpptrad.c: Likewise.  All callers changed.
	* cpplib.c: All callers changed.
	* c-ppoutput.c: Replace 'uchar' with 'unsigned char' throughout.
	* hashtable.h: Define GTY(x) to nothing here too.

From-SVN: r69298