LIST_INSERT_BEFORE
LIST_INSERT_BEFORE(lbrt, brt, brt_hash);
LIST_INSERT_BEFORE(fra, cur, fr_next);
LIST_INSERT_BEFORE(where, node, entry);
LIST_INSERT_BEFORE(r_i, &kp->kp_index, i_entry);
LIST_INSERT_BEFORE(nmsearch, nm, nm_entry);