Expect requiring access check on objects with hidden properties.

src/objects.cc

 // Copyright 2013 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/v8.h"
 
 #include "src/accessors.h"
 #include "src/allocation-site-scopes.h"
 #include "src/api.h"
 #include "src/arguments.h"
@@ skipping 4696 matching lines @@
       } else {
         return GetHeap()->undefined_value();
       }
     } else {
       return GetHeap()->undefined_value();
     }
   } else {
     Isolate* isolate = GetIsolate();
     LookupIterator it(handle(this), isolate->factory()->hidden_string(),
                       LookupIterator::OWN_SKIP_INTERCEPTOR);
-    CHECK_NE(LookupIterator::ACCESS_CHECK, it.state());
-    if (it.state() == LookupIterator::DATA) {
-      return *it.GetDataValue();
-    }
-    DCHECK(!it.IsFound());
-    return GetHeap()->undefined_value();
+    // Access check is always skipped for the hidden string anyways.
+    return *GetDataProperty(&it);
   }
 }
 
 Handle<ObjectHashTable> JSObject::GetOrCreateHiddenPropertiesHashtable(
     Handle<JSObject> object) {
   Isolate* isolate = object->GetIsolate();
 
   static const int kInitialCapacity = 4;
   Handle<Object> inline_value(object->GetHiddenPropertiesHashTable(), isolate);
   if (inline_value->IsHashTable()) {
@@ skipping 11669 matching lines @@
 #define ERROR_MESSAGES_TEXTS(C, T) T,
   static const char* error_messages_[] = {
       ERROR_MESSAGES_LIST(ERROR_MESSAGES_TEXTS)
   };
 #undef ERROR_MESSAGES_TEXTS
   return error_messages_[reason];
 }
 
 
 } }  // namespace v8::internal