* cppexp.c (lex): Use NODE_NAME and NODE_LEN.
	* cpphash.c (_cpp_lookup_with_hash): Similarly.
	* cpplex.c (cpp_ideq, parse_identifier, cpp_token_len,
	cpp_spell_token, cpp_output_token): Similarly.
	* cpplib.c (lex_macro_node, do_undef, do_pragma,
	do_pragma_poison, parse_assertion, do_assert): Similarly.
	* cppmacro.c (builtin_macro, parse_args, funlike_invocation_p,
	save_parameter, _cpp_create_definition, check_trad_stringification,
	cpp_macro_definition): Similarly.
	* cppmain.c (cb_define, cb_undef, dump_macro): Similarly.
	* c-lex.c (cb_undef, c_lex): Similarly.
	* fix-header.c (recognized_function): Similarly.
	* cpplib.h (NODE_LEN, NODE_NAME): New.
	(cpp_hashnode): Rename length len.

From-SVN: r42174