message: Fix msan test in tf_saved_model_lift_variables test
  Now, all the tenors, generated from lift_variables_test.h, has initialized
  values.
diff: @@ -96,15 +96,19 @@ class FakeSession : public tensorflow::Session {
  for (const std::string& output_name : output_names) {
  Tensor output;
  if (output_name == "dense/bias") {
  - outputs->push_back(
  - Tensor(tensorflow::DT_FLOAT, tensorflow::TensorShape({50})));
  + Tensor t = Tensor(tensorflow::DT_FLOAT, tensorflow::TensorShape({50}));
  + t.flat<float>().setZero();
  + outputs->push_back(t);
  } else if (output_name == "dense/kernel") {
  - outputs->push_back(
  - Tensor(tensorflow::DT_FLOAT, tensorflow::TensorShape({100, 50})));
  + Tensor t =
  + Tensor(tensorflow::DT_FLOAT, tensorflow::TensorShape({100, 50}));
  + t.flat<float>().setZero();
  + outputs->push_back(t);
  } else {
  // Create a scalar float tensor.
  - outputs->push_back(
  - Tensor(tensorflow::DT_FLOAT, tensorflow::TensorShape({})));
  + Tensor t = Tensor(tensorflow::DT_FLOAT, tensorflow::TensorShape({}));
  + t.flat<float>()(0) = 1.0f;
  + outputs->push_back(t);
  }
  }
  return Status::OK();
  