message: use api get halt op since 7.2.0
diff: @@ -110,8 +110,11 @@ int coro_init(TSRMLS_D)
  sw_terminate_func.try_catch_array = &sw_terminate_try_catch_array;
  zend_vm_init_call_frame(&fake_frame, ZEND_CALL_TOP_FUNCTION, NULL, 0, NULL, NULL);
  - fake_frame.opline = NULL;
  +#if PHP_MAJOR_VERSION >= 7 && PHP_MINOR_VERSION >= 2
  + fake_frame.opline = zend_get_halt_op();
  +#else
  fake_frame.call = NULL;
  +#endif
  fake_frame.return_value = NULL;
  fake_frame.prev_execute_data = NULL;
  