[strong] make --use-strong flag work in d8

src/d8.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 
 // Defined when linking against shared lib on Windows.
 #if defined(USING_V8_SHARED) && !defined(V8_SHARED)
 #define V8_SHARED
 #endif
 
@@ skipping 820 matching lines @@
   return GetCounter(name, true);
 }
 
 
 void Shell::AddHistogramSample(void* histogram, int sample) {
   Counter* counter = reinterpret_cast<Counter*>(histogram);
   counter->AddSample(sample);
 }
 
 
+class NoUseStrongForUtilityScriptScope {
+ public:
+  NoUseStrongForUtilityScriptScope() : flag_(i::FLAG_use_strong) {
+    i::FLAG_use_strong = false;
+  }
+  ~NoUseStrongForUtilityScriptScope() { i::FLAG_use_strong = flag_; }
+
+ private:
+  bool flag_;
+};
+
+
 void Shell::InstallUtilityScript(Isolate* isolate) {
+  NoUseStrongForUtilityScriptScope no_use_strong;
   HandleScope scope(isolate);
   // If we use the utility context, we have to set the security tokens so that
   // utility, evaluation and debug context can all access each other.
   v8::Local<v8::Context> utility_context =
       v8::Local<v8::Context>::New(isolate, utility_context_);
   v8::Local<v8::Context> evaluation_context =
       v8::Local<v8::Context>::New(isolate, evaluation_context_);
   utility_context->SetSecurityToken(Undefined(isolate));
   evaluation_context->SetSecurityToken(Undefined(isolate));
   v8::Context::Scope context_scope(utility_context);
@@ skipping 845 matching lines @@
 }
 
 }  // namespace v8
 
 
 #ifndef GOOGLE3
 int main(int argc, char* argv[]) {
   return v8::Shell::Main(argc, argv);
 }
 #endif