-new_method(int scope, Type *mtype, char *otype, GList *gtktypes, char *id, GList *args, char *onerror, GString *cbuf, int line_no)
+new_method(int scope, int method, Type *mtype, char *otype, GList *gtktypes, char *id, GList *args, char *onerror, char *cbuf, int line_no, int ccode_line, gboolean vararg)