// 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.

/// Test mismatch in argument counts.

class Niederhorn {
  int goodCall(int a, int b, int c) {
    return a + b;
  }
}

main() {
  var niederhorn = Niederhorn();
  niederhorn.goodCall(1, 2, 3);
  niederhorn.goodCall(1, 2, 3, 4);
  //                 ^
  // [cfe] Too many positional arguments: 3 allowed, but 4 found.
  //                           ^
  // [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
}
