[strong] no sloppy equality

src/d8.cc

Index: src/d8.cc
diff --git a/src/d8.cc b/src/d8.cc
index 41b5fa75fbb3d0bbfe971d54c26359d62ee5a60a..ac025aa4a6880a1b515ef078fdbd31b9ac9fe011 100644
--- a/src/d8.cc
+++ b/src/d8.cc
@@ -833,6 +833,10 @@ void Shell::AddHistogramSample(void* histogram, int sample) {
 
 void Shell::InstallUtilityScript(Isolate* isolate) {
   HandleScope scope(isolate);
+  // TODO(rossberg): Utility scripts do not yet obey strong mode rules.
+  bool use_strong = i::FLAG_use_strong;
+  i::FLAG_use_strong = false;
+
   // 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 =
@@ -882,6 +886,8 @@ void Shell::InstallUtilityScript(Isolate* isolate) {
 
   // Start the in-process debugger if requested.
   if (i::FLAG_debugger) v8::Debug::SetDebugEventListener(HandleDebugEvent);
+
+  i::FLAG_use_strong = use_strong;
 }
 #endif  // !V8_SHARED