pkg/front_end/testcases/nnbd/external_fields_spec.dart

// 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.

external int s1;
external final fx;

class A {
  external int i1;
  external covariant var cx;

  external static int s1;
  external static final fx;
}

main() {}