// 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 It is a static error when the iterable type of the iterator in a
/// synchronous for-in element may not be assigned to the for-in variable's type.
///
/// @description Checks that it is a static error when the iterable type of the
/// iterator in a synchronous for-in element may not be assigned to the for-in
/// variable's type.
/// @author sgrekhov@unipro.ru


main() {
  [for (int i in ["not", "int"]) i];
//                ^^^^^
// [analyzer] unspecified
// [cfe] unspecified
  [for (int i in [3.14, 1.0]) i];
//                ^^^^
// [analyzer] unspecified
// [cfe] unspecified
}
