Skip test for optimized code sharing if flag is disabled by default.

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 337 matching lines @@
     v8::Local<v8::Function> f = v8::Local<v8::Function>::Cast(
         env->Global()->Get(v8::String::New("f")));
     CHECK_EQ(i, f->GetScriptLineNumber());
   }
 }
 
 
 // Test that optimized code for different closures is actually shared
 // immediately by the FastNewClosureStub when run in the same context.
 TEST(OptimizedCodeSharing) {
+  // Skip test if --cache-optimized-code is not activated by default because
+  // FastNewClosureStub that is baked into the snapshot is incorrect.
+  if (!FLAG_cache_optimized_code) return;
   FLAG_allow_natives_syntax = true;
   InitializeVM();
   v8::HandleScope scope;
   for (int i = 0; i < 10; i++) {
     LocalContext env;
     env->Global()->Set(v8::String::New("x"), v8::Integer::New(i));
     CompileRun("function MakeClosure() {"
                "  return function() { return x; };"
                "}"
                "var closure0 = MakeClosure();"
@@ skipping 57 matching lines @@
   CompileRun("function f() { a = 12345678 }; f();");
   CheckCodeForUnsafeLiteral(GetJSFunction(env->Global(), "f"));
   CompileRun("function f(x) { a = 12345678 + x}; f(1);");
   CheckCodeForUnsafeLiteral(GetJSFunction(env->Global(), "f"));
   CompileRun("function f(x) { var arguments = 1; x += 12345678}; f(1);");
   CheckCodeForUnsafeLiteral(GetJSFunction(env->Global(), "f"));
   CompileRun("function f(x) { var arguments = 1; x = 12345678}; f(1);");
   CheckCodeForUnsafeLiteral(GetJSFunction(env->Global(), "f"));
 }
 #endif