S_fold_constants - SvIOKp -> SvIOK (TO SQUASH BEFORE MERGE)

Author: richardleach

op.c

@@ -5022,7 +5022,7 @@ S_fold_constants(pTHX_ OP *const o)
             SV *constsv = cSVOPx_sv(cBINOPo->op_last);
             UV arbitrary = 1024 * 1024;
 
-            if (SvIOKp(constsv)) {
+            if (SvIOK(constsv)) {
                 if (SvIOK_UV(constsv)) {
                     if (SvUVX(constsv) > SIZE_MAX >> 2)
                         ck_warner(packWARN(WARN_MISC), "Unrealistically large string repetition value");