Clear recorded slots when creating filler objects.

src/runtime/runtime-regexp.cc

Index: src/runtime/runtime-regexp.cc
diff --git a/src/runtime/runtime-regexp.cc b/src/runtime/runtime-regexp.cc
index df86aa870cb659eb057c2be97b3c9c06a2355f0e..add5586b8afd6346edab3744a008b78983ebab65 100644
--- a/src/runtime/runtime-regexp.cc
+++ b/src/runtime/runtime-regexp.cc
@@ -642,7 +642,7 @@ MUST_USE_RESULT static Object* StringReplaceGlobalRegExpWithEmptyString(
   // TODO(hpayer): We should shrink the large object page if the size
   // of the object changed significantly.
   if (!heap->lo_space()->Contains(*answer)) {
-    heap->CreateFillerObjectAt(end_of_string, delta);
+    heap->CreateFillerObjectAt(end_of_string, delta, ClearRecordedSlots::kNo);
   }
   heap->AdjustLiveBytes(*answer, -delta, Heap::CONCURRENT_TO_SWEEPER);
   return *answer;