* cpptrad.c (struct block, BLOCK_HEADER_LEN, BLOCK_LEN,
	scan_parameters, save_replacement_text, replacement_length): New.
	(scan_out_logical_line): Take a macro and save parameters if
	non-NULL.
	(_cpp_logical_line_trad): Update.
	(_cpp_create_trad_definition): Update to handle function-like
	macros.
	* cpplex.c (new_buff): Update.
	(struct dummy, DEFAULT_ALIGNMENT, CPP_ALIGN): Move...
	* cpphash.h: ...here.
	(CPP_ALIGN2, _cpp_save_parameter): New.
	* cppmacro.c (save_parameter): Rename, export.
	(parse_params): Update.

From-SVN: r54331