Correctly hook up back references to internalized strings in code deserializer.

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 773 matching lines @@
       Execution::Call(isolate, copy_fun, global, 0, NULL).ToHandleChecked();
   CHECK(orig_result.is_identical_to(copy_result));
   Handle<String> expected =
       isolate->factory()->NewStringFromAsciiChecked("string1");
 
   CHECK(Handle<String>::cast(copy_result)->Equals(*expected));
   CHECK_EQ(builtins_count, CountBuiltins());
 
   delete cache;
 }
+
+
+TEST(SerializeToplevelIsolates) {
+  FLAG_serialize_toplevel = true;
+
+  const char* source = "function f() { return 'abc'; }; f() + 'def'";
+  v8::ScriptCompiler::CachedData* cache;
+
+  v8::Isolate* isolate = v8::Isolate::New();
+  {
+    v8::Isolate::Scope iscope(isolate);
+    v8::HandleScope scope(isolate);
+    v8::Local<v8::Context> context = v8::Context::New(isolate);
+    v8::Context::Scope context_scope(context);
+
+    v8::Local<v8::String> source_str = v8_str(source);
+    v8::ScriptOrigin origin(v8_str("test"));
+    v8::ScriptCompiler::Source source(source_str, origin);
+    v8::Local<v8::UnboundScript> script = v8::ScriptCompiler::CompileUnbound(
+        isolate, &source, v8::ScriptCompiler::kProduceCodeCache);
+    const v8::ScriptCompiler::CachedData* data = source.GetCachedData();
+    // Persist cached data.
+    uint8_t* buffer = NewArray<uint8_t>(data->length);
+    MemCopy(buffer, data->data, data->length);
+    cache = new v8::ScriptCompiler::CachedData(
+        buffer, data->length, v8::ScriptCompiler::CachedData::BufferOwned);
+
+    v8::Local<v8::Value> result = script->BindToCurrentContext()->Run();
+    CHECK(result->ToString()->Equals(v8_str("abcdef")));
+  }
+  isolate->Dispose();
+
+  isolate = v8::Isolate::New();
+  {
+    v8::Isolate::Scope iscope(isolate);
+    v8::HandleScope scope(isolate);
+    v8::Local<v8::Context> context = v8::Context::New(isolate);
+    v8::Context::Scope context_scope(context);
+
+    v8::Local<v8::String> source_str = v8_str(source);
+    v8::ScriptOrigin origin(v8_str("test"));
+    v8::ScriptCompiler::Source source(source_str, origin, cache);
+    v8::Local<v8::UnboundScript> script;
+    {
+      DisallowCompilation no_compile(reinterpret_cast<Isolate*>(isolate));
+      script = v8::ScriptCompiler::CompileUnbound(
+          isolate, &source, v8::ScriptCompiler::kConsumeCodeCache);
+    }
+    v8::Local<v8::Value> result = script->BindToCurrentContext()->Run();
+    CHECK(result->ToString()->Equals(v8_str("abcdef")));
+  }
+  isolate->Dispose();
+}