-type *get_class_trans_subtype_first(type *tp);
-type *get_class_trans_subtype_next (type *tp);
-int is_class_trans_subtype (type *tp, type *subtp);
+ir_type *get_class_trans_subtype_first(ir_type *tp);
+ir_type *get_class_trans_subtype_next (ir_type *tp);
+int is_class_trans_subtype (ir_type *tp, ir_type *subtp);