Make Map::Create always use the Object function, and remove the unused inobject properties

src/runtime.cc

Index: src/runtime.cc
diff --git a/src/runtime.cc b/src/runtime.cc
index 45dd9a4cd5128abfdf2e42c1d5ba5fc12d5684a0..3acbb81d89dff0c0d2c21003762bb785c6a7df85 100644
--- a/src/runtime.cc
+++ b/src/runtime.cc
@@ -207,7 +207,7 @@ static Handle<Map> ComputeObjectLiteralMap(
     return isolate->factory()->ObjectLiteralMapFromCache(context, keys);
   }
   *is_result_from_cache = false;
-  return Map::Create(handle(context->object_function()), number_of_properties);
+  return Map::Create(isolate, number_of_properties);
 }