lj_ir_kslot        50 lj_iropt.h     LJ_FUNC TRef lj_ir_kslot(jit_State *J, TRef key, IRRef slot);
lj_ir_kslot      1349 lj_record.c          kslot = lj_ir_kslot(J, key, hslot / sizeof(Node));
lj_ir_kslot       566 lj_snap.c      		  key = lj_ir_kslot(J, snap_replay_const(J, &T->ir[irk->op1]),