// Copyright (c) 2020, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
//
// Regression test for https://github.com/dart-lang/sdk/issues/40662.
// @dart=2.9
bar(int a, List<int> b) {
  expect(-1, a);
  expect(-1, (b[0] - 2));
}

foo(int x) async => bar(x - 1, x != null ? [x + 1, x + 2, await null] : null);

void main() async => await foo(0);

expect(expected, actual) {
  if (expected != actual) throw "Expected $expected, actual $actual";
}