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// Copyright (c) 2019, 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.
// dart2jsOptions=--omit-implicit-checks
import 'package:expect/expect.dart';
class C {
const C();
}
class A {
var field = const C();
}
class B {
var field;
}
@pragma('dart2js:noInline')
test(o) => o.field;
main() {
Expect.isNotNull(test(new A()));
Expect.isNull(test(new B()));
}