IRTOSTR_CHAR      862 lj_ffrecord.c      J->base[i] = emitir(IRT(IR_TOSTR, IRT_STR), tr, IRTOSTR_CHAR);
IRTOSTR_CHAR     1033 lj_ffrecord.c  		    emitir(IRT(IR_TOSTR, IRT_STR), tra, IRTOSTR_CHAR));
IRTOSTR_CHAR     1149 lj_ffrecord.c        TRef tr = (irs->o == IR_TOSTR && irs->op2 == IRTOSTR_CHAR) ?
IRTOSTR_CHAR     2246 lj_opt_fold.c    if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD) && fleft->op2 == IRTOSTR_CHAR)