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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.
/// @assertion A generic type alias is a declaration [D] of one of the following
/// forms:
/// m typedef id<X1extendsB1, ..., Xs extendsBs> = T;
/// ...
/// where [m] is derived from metadata, [T] is a type, and [S?] is a type or the
/// empty string. Let [S0] be [S?] if it is a type, otherwise let [S0] be
/// [dynamic]. The associated type of [D], call it [F], is, respectively:
/// T
/// ...
/// @description Checks that [T] can be another function type alias.
/// @author
// SharedOptions=--enable-experiment=nonfunction-type-aliases
typedef Alias1<T> = T Function(T);
typedef Alias2<T> = Alias1<T>;
main() {}