Add script context with context-allocated "const this"

test/cctest/test-serialize.cc

 // Copyright 2007-2010 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 475 matching lines @@
     Handle<JSGlobalProxy> global_proxy =
         isolate->factory()->NewUninitializedJSGlobalProxy();
     {
       SnapshotData snapshot_data(Vector<const byte>(snapshot, snapshot_size));
       Deserializer deserializer(&snapshot_data);
       root =
           deserializer.DeserializePartial(isolate, global_proxy,
                                           &outdated_contexts).ToHandleChecked();
       CHECK(root->IsContext());
       CHECK(Handle<Context>::cast(root)->global_proxy() == *global_proxy);
-      CHECK_EQ(1, outdated_contexts->length());
+      CHECK_EQ(2, outdated_contexts->length());
     }
 
     Handle<Object> root2;
     {
       SnapshotData snapshot_data(Vector<const byte>(snapshot, snapshot_size));
       Deserializer deserializer(&snapshot_data);
       root2 =
           deserializer.DeserializePartial(isolate, global_proxy,
                                           &outdated_contexts).ToHandleChecked();
       CHECK(root2->IsContext());
@@ skipping 1099 matching lines @@
   isolate->Dispose();
 }
 
 
 TEST(SerializationMemoryStats) {
   FLAG_profile_deserialization = true;
   FLAG_always_opt = false;
   v8::StartupData blob = v8::V8::CreateSnapshotDataBlob();
   delete[] blob.data;
 }