[heap] Don't clear black areas in Heap::AllocateFillerObject.

src/heap/heap.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/heap/heap.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/ast/context-slot-cache.h"
 #include "src/base/bits.h"
@@ skipping 2113 matching lines @@
   HeapObject* obj = nullptr;
   {
     AllocationAlignment align = double_align ? kDoubleAligned : kWordAligned;
     AllocationResult allocation = AllocateRaw(size, space, align);
     if (!allocation.To(&obj)) return allocation;
   }
 #ifdef DEBUG
   MemoryChunk* chunk = MemoryChunk::FromAddress(obj->address());
   DCHECK(chunk->owner()->identity() == space);
 #endif
-  CreateFillerObjectAt(obj->address(), size, ClearRecordedSlots::kNo);
+  CreateFillerObjectAt(obj->address(), size, ClearRecordedSlots::kNo,
+                       ClearBlackArea::kNo);
   return obj;
 }
 
 
 const Heap::StringTypeTable Heap::string_type_table[] = {
 #define STRING_TYPE_ELEMENT(type, size, name, camel_name) \
   { type, size, k##camel_name##MapRootIndex }             \
   ,
     STRING_TYPE_LIST(STRING_TYPE_ELEMENT)
 #undef STRING_TYPE_ELEMENT
@@ skipping 4350 matching lines @@
 }
 
 
 // static
 int Heap::GetStaticVisitorIdForMap(Map* map) {
   return StaticVisitorBase::GetVisitorId(map);
 }
 
 }  // namespace internal
 }  // namespace v8