Serialize builtins by referencing canonical ones.

test/cctest/test-compiler.cc

 // Copyright 2012 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 381 matching lines @@
         *v8::Local<v8::Function>::Cast(env->Global()->Get(v8_str("closure2"))));
     CHECK(fun1->IsOptimized()
           || !CcTest::i_isolate()->use_crankshaft() || !fun1->IsOptimizable());
     CHECK(fun2->IsOptimized()
           || !CcTest::i_isolate()->use_crankshaft() || !fun2->IsOptimizable());
     CHECK_EQ(fun1->code(), fun2->code());
   }
 }
 
 
-TEST(SerializeToplevel) {
-  FLAG_serialize_toplevel = true;
-  v8::HandleScope scope(CcTest::isolate());
-  v8::Local<v8::Context> context = CcTest::NewContext(PRINT_EXTENSION);
-  v8::Context::Scope context_scope(context);
-
-  const char* source1 = "1 + 1";
-  const char* source2 = "1 + 2";  // Use alternate string to verify caching.
-
-  Isolate* isolate = CcTest::i_isolate();
-  Handle<String> source1_string = isolate->factory()
-                                      ->NewStringFromUtf8(CStrVector(source1))
-                                      .ToHandleChecked();
-  Handle<String> source2_string = isolate->factory()
-                                      ->NewStringFromUtf8(CStrVector(source2))
-                                      .ToHandleChecked();
-
-  ScriptData* cache = NULL;
-
-  Handle<SharedFunctionInfo> orig =
-      Compiler::CompileScript(source1_string, Handle<String>(), 0, 0, false,
-                              Handle<Context>(isolate->native_context()), NULL,
-                              &cache, PRODUCE_CACHED_DATA, NOT_NATIVES_CODE);
-
-  Handle<SharedFunctionInfo> info =
-      Compiler::CompileScript(source2_string, Handle<String>(), 0, 0, false,
-                              Handle<Context>(isolate->native_context()), NULL,
-                              &cache, CONSUME_CACHED_DATA, NOT_NATIVES_CODE);
-
-  CHECK_NE(*orig, *info);
-  Handle<JSFunction> fun =
-      isolate->factory()->NewFunctionFromSharedFunctionInfo(
-          info, isolate->native_context());
-  Handle<JSObject> global(isolate->context()->global_object());
-  Handle<Object> result =
-      Execution::Call(isolate, fun, global, 0, NULL).ToHandleChecked();
-  CHECK_EQ(2, Handle<Smi>::cast(result)->value());
-
-  delete cache;
-}
-
-
 #ifdef ENABLE_DISASSEMBLER
 static Handle<JSFunction> GetJSFunction(v8::Handle<v8::Object> obj,
                                  const char* property_name) {
   v8::Local<v8::Function> fun =
       v8::Local<v8::Function>::Cast(obj->Get(v8_str(property_name)));
   return v8::Utils::OpenHandle(*fun);
 }
 
 
 static void CheckCodeForUnsafeLiteral(Handle<JSFunction> f) {
@@ skipping 32 matching lines @@
   CompileRun("function f() { a = 12345678 }; f();");
   CheckCodeForUnsafeLiteral(GetJSFunction(context->Global(), "f"));
   CompileRun("function f(x) { a = 12345678 + x}; f(1);");
   CheckCodeForUnsafeLiteral(GetJSFunction(context->Global(), "f"));
   CompileRun("function f(x) { var arguments = 1; x += 12345678}; f(1);");
   CheckCodeForUnsafeLiteral(GetJSFunction(context->Global(), "f"));
   CompileRun("function f(x) { var arguments = 1; x = 12345678}; f(1);");
   CheckCodeForUnsafeLiteral(GetJSFunction(context->Global(), "f"));
 }
 #endif