message: [TF/XLA Bridge] Do not alias pass-through variables when run on XLA devices
  Fixes tensorflow/compiler/tests:variable_ops_test_gpu test failure.
diff: @@ -317,7 +317,8 @@ static Status CompileToLocalExecutable(
  }
  // If reference variables are not present in the graph, we can safely alias
  // passthrough parameters without performing a copy.
  - options.alias_passthrough_params = !has_ref_vars;
  + options.alias_passthrough_params =
  + !has_ref_vars && !platform_info.is_on_xla_device();
  std::map<int, Tensor> constant_args;
  for (int i : constants) {
  