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// Copyright (c) 2013, 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.
// @dart = 2.9
import "package:expect/expect.dart";
// Test that user field names cannot clash with internal names of the
// dart2js compiler.
class A<T> {
var $isA;
var $eq;
var $builtinTypeInfo;
main() {
var c = [new A()];
Expect.isTrue(c[0] is A);
Expect.isTrue(c[0] == c[0]);
c = [new A<int>()];
c[0].$builtinTypeInfo = 42;
Expect.isTrue(c[0] is! A<String>);