Migrating a block of dart 1 tests to dart 2

tests/language_strong/closure_call_wrong_argument_count_negative_test.dart

-// Copyright (c) 2011, 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 ClosureCallWrongArgumentCountNegativeTest {
-  static int melke(var f) {
-    return f(1, 2, 3);
-  }
-
-  static void testMain() {
-    kuh(int a, int b) {
-      return a + b;
-    }
-
-    melke(kuh);
-  }
-}
-
-main() {
-  ClosureCallWrongArgumentCountNegativeTest.testMain();
-}