Allocate block-scoped global bindings to global context.

src/bootstrapper.h

Index: src/bootstrapper.h
diff --git a/src/bootstrapper.h b/src/bootstrapper.h
index f2043d0f7a162f2483ec08e3d365224846fef5b6..179e65c35414852b30f221ee38e1823072a8a67c 100644
--- a/src/bootstrapper.h
+++ b/src/bootstrapper.h
@@ -104,7 +104,7 @@ class Bootstrapper {
   void DetachGlobal(Handle<Context> env);
 
   // Reattach an outer global object to an environment.
-  void ReattachGlobal(Handle<Context> env, Handle<Object> global_object);
+  void ReattachGlobal(Handle<Context> env, Handle<JSGlobalProxy> global_proxy);
 
   // Traverses the pointers for memory management.
   void Iterate(ObjectVisitor* v);