add_oid_to_tail
add_oid_to_tail((yyvsp[(2) - (2)].objid), (yyvsp[(1) - (2)].objid));
static void add_oid_to_tail(struct objid *, struct objid *);
static void add_oid_to_tail(struct objid *, struct objid *);
add_oid_to_tail($2, $1);