Never skip access checks when looking up properties

src/ic/ic.cc

 // 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.
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/arguments.h"
 #include "src/base/bits.h"
@@ skipping 265 matching lines @@
 
   if (state() == MONOMORPHIC) {
     int index = ic_holder_map->IndexInCodeCache(*name, *target());
     if (index >= 0) {
       ic_holder_map->RemoveFromCodeCache(*name, *target(), index);
     }
   }
 
   if (receiver->IsGlobalObject()) {
     Handle<GlobalObject> global = Handle<GlobalObject>::cast(receiver);
-    LookupIterator it(global, name, LookupIterator::OWN_PROPERTY);
+    LookupIterator it(global, name, LookupIterator::OWN_SKIP_INTERCEPTOR);
+    if (it.state() == LookupIterator::ACCESS_CHECK) return false;
     if (!it.IsFound() || !it.HasProperty()) return false;
     Handle<PropertyCell> cell = it.GetPropertyCell();
     return cell->type()->IsConstant();
   }
 
   return true;
 }
 
 
 bool IC::IsNameCompatibleWithPrototypeFailure(Handle<Object> name) {
@@ skipping 2901 matching lines @@
 static const Address IC_utilities[] = {
 #define ADDR(name) FUNCTION_ADDR(name),
     IC_UTIL_LIST(ADDR) NULL
 #undef ADDR
 };
 
 
 Address IC::AddressFromUtilityId(IC::UtilityId id) { return IC_utilities[id]; }
 }
 }  // namespace v8::internal