message: [XLA] Initialize custom_call_schedule_ in HloCustomCallInstruction.
diff: @@ -2420,7 +2420,8 @@ HloCustomCallInstruction::HloCustomCallInstruction(
  batch_group_count_(1),
  layout_constrained_(false),
  padding_type_(PaddingType::PADDING_INVALID),
  - custom_call_has_side_effect_(false) {
  + custom_call_has_side_effect_(false),
  + custom_call_schedule_(CustomCallSchedule::NONE) {
  set_raw_backend_config_string(std::move(opaque));
  for (auto operand : operands) {
  AppendOperand(operand);
  