Moved lastadded from DescriptorArray to Map. Renamed kLastAdded to kEnumCache.

test/cctest/test-alloc.cc

Index: test/cctest/test-alloc.cc
diff --git a/test/cctest/test-alloc.cc b/test/cctest/test-alloc.cc
index e51ab26598315a7c29bf5796a656c991d1fc93c8..e9de25fa57e5098bd7f55ac518aa017c6343ed21 100644
--- a/test/cctest/test-alloc.cc
+++ b/test/cctest/test-alloc.cc
@@ -158,15 +158,14 @@ TEST(StressJS) {
   Handle<DescriptorArray> new_descriptors = FACTORY->NewDescriptorArray(1);
 
   v8::internal::DescriptorArray::WhitenessWitness witness(*new_descriptors);
+  map->set_instance_descriptors(*new_descriptors);
 
   CallbacksDescriptor d(*name,
                         *foreign,
                         static_cast<PropertyAttributes>(0),
                         v8::internal::PropertyDetails::kInitialIndex);
-  new_descriptors->Set(0, &d, witness);
-  new_descriptors->SetLastAdded(0);
+  map->AppendDescriptor(&d, witness);
 
-  map->set_instance_descriptors(*new_descriptors);
   // Add the Foo constructor the global object.
   env->Global()->Set(v8::String::New("Foo"), v8::Utils::ToLocal(function));
   // Call the accessor through JavaScript.