More details printed for Map, DescriptorArray and TransitionArray.

src/transitions-inl.h

 // 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.
 
 #ifndef V8_TRANSITIONS_INL_H_
 #define V8_TRANSITIONS_INL_H_
 
 #include "src/transitions.h"
 
 namespace v8 {
@@ skipping 116 matching lines @@
   set(ToTargetIndex(transition_number), value);
 }
 
 
 PropertyDetails TransitionArray::GetTargetDetails(int transition_number) {
   Map* map = GetTarget(transition_number);
   return map->GetLastDescriptorDetails();
 }
 
 
+Object* TransitionArray::GetTargetValue(int transition_number) {
+  Map* map = GetTarget(transition_number);
+  return map->instance_descriptors()->GetValue(map->LastAdded());
+}
+
+
 int TransitionArray::Search(Name* name) {
   if (IsSimpleTransition()) {
     Name* key = GetKey(kSimpleTransitionIndex);
     if (key->Equals(name)) return kSimpleTransitionIndex;
     return kNotFound;
   }
   return internal::Search<ALL_ENTRIES>(this, name);
 }
 
 
 void TransitionArray::NoIncrementalWriteBarrierSet(int transition_number,
                                                    Name* key,
                                                    Map* target) {
   FixedArray::NoIncrementalWriteBarrierSet(
       this, ToKeyIndex(transition_number), key);
   FixedArray::NoIncrementalWriteBarrierSet(
       this, ToTargetIndex(transition_number), target);
 }
 
 
 #undef FIELD_ADDR
 #undef WRITE_FIELD
 #undef CONDITIONAL_WRITE_BARRIER
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TRANSITIONS_INL_H_