RTK(KW_USING)
string name_specifier;
ast_model_id id_expr_temp;
RSPV(nested_name_specifier, name_specifier)
//RSPV(unqualified_id, id_expr_temp) // Scotty Doesn't Know
RTK(TT_IDENTIFIER)
if(!error)
	id_expr_temp.name = stream[pos - 1].data;
RTK(OP_SEMICOLON)