* cpphash.c (struct arg, struct arglist): Const-ify strings.

	(warn_trad_stringify, duplicate_arg_p): New helper functions.
	(collect_expansion): Rewrite to scan over a token list.
	Remove -traditional support.
	(collect_formal_parameters): Rename to collect_params; rewrite
	to scan over a token list.
	(_cpp_create_definition): Adjust to scan a token list.
	(_cpp_macroexpand): Remove -traditional support.
	(_cpp_compare_defs): Whitespace is now canonicalized.
	(comp_def_part): Delete function.

	* cpphash.h: Update prototypes.
	* cpplex.c (init_token_list): Don't set lineno if there is no
	buffer.
	(pedantic_whitespace): New function.
	(_cpp_scan_line): Mark tokens that had hspace before.  Don't
	consume a newline.  Use pedantic_whitespace.
	(_cpp_lex_token): Remove support for -traditional macros.
	(_cpp_get_define_token): Delete.
	(_cpp_get_directive_token): Do the real work here.  Use
	pedantic_whitespace.
	(_cpp_init_input_buffer): Initialize pfile->directbuf.

	* cpplib.c (get_macro_name): Delete.
	(do_define): Read the entire line into pfile->directbuf, then
	feed the token list to _cpp_create_definition.
	* cpplib.h (HSPACE_BEFORE): new define.
	(struct cpp_reader): Add a toklist member, "directbuf".


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33309 138bc75d-0d04-0410-961f-82ee72b054a4

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