pkg/front_end/testcases/inference/dont_infer_type_on_dynamic.dart

// Copyright (c) 2017, 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
/*@testedFeatures=inference*/
library test;

test() {
  dynamic x = 3;
  x = "hi";
}

main() {
  test();
}