message: [XLA] Change backtrace logging from WARNING to VLOG(1)
diff: @@ -34,8 +34,8 @@ namespace {
  // Logs the provided status message with a backtrace.
  Status WithLogBacktrace(const Status& status) {
  CHECK(!status.ok());
  - LOG(WARNING) << status.ToString();
  - LOG(WARNING) << tensorflow::CurrentStackTrace();
  + VLOG(1) << status.ToString();
  + VLOG(1) << tensorflow::CurrentStackTrace();
  return status;
  }
  