* mdebugread.c (parse_partial_symbols): Reset includes_used

	* mdebugread.c (parse_partial_symbols):  Reset includes_used
	and dependencies_used after finishing the partial symbol table.

	* rs6000-nat.c (xcoff_relocate_core):  Don't relocate data
	addresses for the main objfile if DONT_RELOCATE_SYMFILE_OBJFILE
	is defined.
	* xcoffread.c:  gcc -Wall lint. Remove traceback table reading
	code. The existing code tried to add parameter information for
	functions compiled without -g, which cannot be done properly
	for optimized code and produced misleading parameter displays.
	(ef_complaint, eb_complaint):  Make a local static copy to avoid
	dependency on coffread.c.
	(read_xcoff_symtab, process_xcoff_symbol, scan_xcoff_symtab):
	Enter C_EXT/C_HIDEXT symbols into the minimal symbol table only.
	(read_xcoff_symtab):  Ignore C_STAT section auxiliary entry
	symbols. Complain about unmatched .ef and .eb symbols instead of
	segfaulting.
	(process_xcoff_symbol):  Determine value of C_GSYM symbols via
	the global_sym_chain mechanism in stabsread.c.
	(xcoff_new_init):  Call stabsread_new_init and buildsym_new_init.
	(init_string_tab):  Initialize length field bytes in the strtbl.
	(scan_xcoff_symtab):  Skip symbols that start with `$' or `.$'.
	Set first_fun_line_offset for symbols with two auxents only.