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// Copyright (c) 2018, 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.
/// @assertion A mixin declaration syntax separate from class declarations:
/// mixinDeclaration :
/// metadata? 'mixin' identifier typeParameters? ('on' types)?
/// ('implements' types)? '{' mixinMember* '}'
/// @description Checks that mixin declaration above is correct.
/// @author
class S {}
class T {}
class X extends S {}
class Y extends T {}
mixin M<X extends S, Y extends T> {}
class MA with M<X, Y> {}
main() {
new MA();