Allow ObjectWrap destructors before Wrap()

src/node_object_wrap.h

@@ -13,10 +13,13 @@ class ObjectWrap {
   }
 
   virtual ~ObjectWrap ( ) {
+    if (!handle_.IsEmpty()) {
+      assert(handle_.IsNearDeath());
       handle_->SetInternalField(0, v8::Undefined());
       handle_.Dispose();
       handle_.Clear();
     }
+  }
 
   template <class T>
   static inline T* Unwrap (v8::Handle<v8::Object> handle)