LJ_TRLINK_LOOP    546 lj_record.c          rec_stop(J, LJ_TRLINK_LOOP, J->cur.traceno);  /* Looping root trace. */
LJ_TRLINK_LOOP    577 lj_record.c          rec_stop(J, LJ_TRLINK_LOOP, J->cur.traceno);  /* Form an extra loop. */