message: VLOG(2) accepted nodes in segmenter
diff: @@ -450,6 +450,12 @@ tensorflow::Status SegmentGraph(
  num_unsupported_ops++;
  node = nullptr;
  }
  + else {
  + VLOG(2) << "Accepted as a TF-TRT candidate, "
  + << "(Op type: " << node->tf_node()->type_string() << "), "
  + << "(Op name: " << node->name() << "), "
  + << "(Reason: " << status << ")";
  + }
  }
  node_segments.emplace_back(node);
  }
  