* lex.c (maybe_add_lang_type_raw): BOUND_TEMPLATE_TEMPLATE_PARMs
	don't need lang_type.
	(cxx_make_type): Use maybe_add_lang_type_raw return value.
	* mangle.c (CLASSTYPE_TEMPLATE_ID_P): Don't rely on
	TYPE_LANG_SPECIFIC.

From-SVN: r251154