Add assertion to UniqueValueId constructor.

src/handles-inl.h

 // Copyright 2006-2008 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 67 matching lines @@
   return location_;
 }
 
 #ifdef DEBUG
 template <typename T>
 bool Handle<T>::IsDereferenceAllowed(DereferenceCheckMode mode) const {
   ASSERT(location_ != NULL);
   Object* object = *BitCast<T**>(location_);
   if (object->IsSmi()) return true;
   HeapObject* heap_object = HeapObject::cast(object);
-  Isolate* isolate = heap_object->GetIsolate();
-  Object** handle = reinterpret_cast<Object**>(location_);
-  Object** roots_array_start = isolate->heap()->roots_array_start();
-  if (roots_array_start <= handle &&
-      handle < roots_array_start + Heap::kStrongRootListLength) {
-    return true;
-  }
+  Heap* heap = heap_object->GetHeap();
+  Object** handle = reinterpret_cast<Object**>(location_);;
+  if (heap->IsInRootsArray(handle)) return true;
   if (!AllowHandleDereference::IsAllowed()) return false;
   if (mode == INCLUDE_DEFERRED_CHECK &&
       !AllowDeferredHandleDereference::IsAllowed()) {
     // Accessing maps and internalized strings is safe.
     if (heap_object->IsMap()) return true;
     if (heap_object->IsInternalizedString()) return true;
-    return !isolate->IsDeferredHandle(handle);
+    return !heap->isolate()->IsDeferredHandle(handle);
   }
   return true;
 }
-#endif
+#endif  // DEBUG
 
 
 
 HandleScope::HandleScope(Isolate* isolate) {
   v8::ImplementationUtilities::HandleScopeData* current =
       isolate->handle_scope_data();
   isolate_ = isolate;
   prev_next_ = current->next;
   prev_limit_ = current->limit;
   current->level++;
@@ skipping 87 matching lines @@
   current->level = level_;
   ASSERT_EQ(current->next, current->limit);
   current->limit = limit_;
 }
 
 #endif
 
 } }  // namespace v8::internal
 
 #endif  // V8_HANDLES_INL_H_