Clear recorded slots when creating filler objects.

src/profiler/sampling-heap-profiler.cc

Index: src/profiler/sampling-heap-profiler.cc
diff --git a/src/profiler/sampling-heap-profiler.cc b/src/profiler/sampling-heap-profiler.cc
index a73f0789285ca050fb6f37ef10185316173ced1b..4ead12d06e21dfece62bf8f09d5654b9ed1a15be 100644
--- a/src/profiler/sampling-heap-profiler.cc
+++ b/src/profiler/sampling-heap-profiler.cc
@@ -99,7 +99,8 @@ void SamplingHeapProfiler::SampleObject(Address soon_object, size_t size) {
 
   // Mark the new block as FreeSpace to make sure the heap is iterable while we
   // are taking the sample.
-  heap()->CreateFillerObjectAt(soon_object, static_cast<int>(size));
+  heap()->CreateFillerObjectAt(soon_object, static_cast<int>(size),
+                               kNoRecordedSlots);
 
   Local<v8::Value> loc = v8::Utils::ToLocal(obj);