Added a version of the v8::HandleScope constructor with an Isolate and use that consistently.

src/mksnapshot.cc

Index: src/mksnapshot.cc
diff --git a/src/mksnapshot.cc b/src/mksnapshot.cc
index a3665e969df2db02ddcedf2de3e06a2aa4797efa..abfe69397b0998927fd7d2c0a498de38f64780a2 100644
--- a/src/mksnapshot.cc
+++ b/src/mksnapshot.cc
@@ -318,11 +318,12 @@ int main(int argc, char** argv) {
             "\nException thrown while compiling natives - see above.\n\n");
     exit(1);
   }
+  Isolate* isolate = context->GetIsolate();
   if (i::FLAG_extra_code != NULL) {
     context->Enter();
     // Capture 100 frames if anything happens.
     V8::SetCaptureStackTraceForUncaughtExceptions(true, 100);
-    HandleScope scope;
+    HandleScope scope(isolate);
     const char* name = i::FLAG_extra_code;
     FILE* file = i::OS::FOpen(name, "rb");
     if (file == NULL) {
@@ -375,7 +376,7 @@ int main(int argc, char** argv) {
     context->Exit();
   }
   // Make sure all builtin scripts are cached.
-  { HandleScope scope;
+  { HandleScope scope(isolate);
     for (int i = 0; i < i::Natives::GetBuiltinsCount(); i++) {
       i::Isolate::Current()->bootstrapper()->NativesSourceLookup(i);
     }