[cleanup] Fix inconsistency in JSCallReducer

Bug: v8:7310
Change-Id: Ia9e830ef9283b6890f505f15550170d1fd1f47b2
Reviewed-on: https://chromium-review.googlesource.com/939623Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51611}

src/compiler/js-call-reducer.cc

@@ -252,7 +252,7 @@ Reduction JSCallReducer::ReduceObjectConstructor(Node* node) {
     }
   } else {
     ReplaceWithValue(node, value);
-    return Replace(node);
+    return Replace(value);
   }
   return NoChange();
 }