Revert of Prevent stack overflow in the serializer/deserializer.

src/bootstrapper.cc

 // Copyright 2014 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/bootstrapper.h"
 
 #include "src/accessors.h"
 #include "src/api-natives.h"
 #include "src/base/utils/random-number-generator.h"
 #include "src/code-stubs.h"
@@ skipping 2813 matching lines @@
         LookupIterator it(to, key, LookupIterator::OWN_SKIP_INTERCEPTOR);
         CHECK_NE(LookupIterator::ACCESS_CHECK, it.state());
         if (it.IsFound()) continue;
         // Set the property.
         Handle<Object> value = Handle<Object>(properties->ValueAt(i),
                                               isolate());
         DCHECK(!value->IsCell());
         if (value->IsPropertyCell()) {
           value = handle(PropertyCell::cast(*value)->value(), isolate());
         }
-        if (value->IsTheHole()) continue;
         PropertyDetails details = properties->DetailsAt(i);
         DCHECK_EQ(kData, details.kind());
         JSObject::AddProperty(to, key, value, details.attributes());
       }
     }
   }
 }
 
 
 void Genesis::TransferIndexedProperties(Handle<JSObject> from,
@@ skipping 178 matching lines @@
   return from + sizeof(NestingCounterType);
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   DCHECK(!IsActive());
 }
 
 } }  // namespace v8::internal