Fixed assertion.

src/objects.cc

 // Copyright 2012 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 4971 matching lines @@
           this, target, descriptor_number, component, accessor, attributes);
     }
   } else {
     // If not, lookup a transition.
     map()->LookupTransition(this, name, &result);
 
     // If there is a transition, try to follow it.
     if (result.IsFound()) {
       Map* target = result.GetTransitionTarget();
       int descriptor_number = target->LastAdded();
-      ASSERT(target->instance_descriptors()->GetKey(descriptor_number) == name);
+      ASSERT(target->instance_descriptors()->GetKey(descriptor_number)
+             ->Equals(name));
       return TryAccessorTransition(
           this, target, descriptor_number, component, accessor, attributes);
     }
   }
 
   // If there is no transition yet, add a transition to the a new accessor pair
   // containing the accessor.
   AccessorPair* accessors;
   MaybeObject* maybe_accessors;
 
@@ skipping 8843 matching lines @@
   set_year(Smi::FromInt(year), SKIP_WRITE_BARRIER);
   set_month(Smi::FromInt(month), SKIP_WRITE_BARRIER);
   set_day(Smi::FromInt(day), SKIP_WRITE_BARRIER);
   set_weekday(Smi::FromInt(weekday), SKIP_WRITE_BARRIER);
   set_hour(Smi::FromInt(hour), SKIP_WRITE_BARRIER);
   set_min(Smi::FromInt(min), SKIP_WRITE_BARRIER);
   set_sec(Smi::FromInt(sec), SKIP_WRITE_BARRIER);
 }
 
 } }  // namespace v8::internal