Fix a GC issue

src/heap.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 2071 matching lines @@
   // If the function has only simple this property assignments add field
   // descriptors for these to the initial map as the object cannot be
   // constructed without having these properties.
   ASSERT(in_object_properties <= Map::kMaxPreAllocatedPropertyFields);
   if (fun->shared()->has_only_this_property_assignments() &&
       fun->shared()->this_property_assignments_count() > 0) {
     int count = fun->shared()->this_property_assignments_count();
     if (count > in_object_properties) {
       count = in_object_properties;
     }
-    DescriptorArray* descriptors = *Factory::NewDescriptorArray(count);
-    if (descriptors->IsFailure()) return descriptors;
+    Object* descriptors_obj = DescriptorArray::Allocate(count);
+    if (descriptors_obj->IsFailure()) return descriptors_obj;
+    DescriptorArray* descriptors = DescriptorArray::cast(descriptors_obj);
     for (int i = 0; i < count; i++) {
       String* name = fun->shared()->GetThisPropertyAssignmentName(i);
       ASSERT(name->IsSymbol());
       FieldDescriptor field(name, i, NONE);
       descriptors->Set(i, &field);
     }
     descriptors->Sort();
     map->set_instance_descriptors(descriptors);
     map->set_pre_allocated_property_fields(count);
     map->set_unused_property_fields(in_object_properties - count);
@@ skipping 1813 matching lines @@
 #ifdef DEBUG
 bool Heap::GarbageCollectionGreedyCheck() {
   ASSERT(FLAG_gc_greedy);
   if (Bootstrapper::IsActive()) return true;
   if (disallow_allocation_failure()) return true;
   return CollectGarbage(0, NEW_SPACE);
 }
 #endif
 
 } }  // namespace v8::internal