Move frog/tests/{leg,leg_only,frog_native} to tests/compiler/.

frog/tests/leg_only/super_constructor1_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.
-
-String message;
-
-class A {
-  int x;
-  A(i) : x = i {
-    message += 'A($i)';
-  }
-}
-
-class B extends A {
-  int y;
-  B(i) : y = i++, super(i + 5) {
-    message += 'B($i)';
-  }
-}
-
-class C extends B {
-  var z;
-  C(i) : super(i * 3), z = i {
-    message += 'C($i)';
-  }
-}
-
-main() {
-  message = '';
-  var c = new C(7);
-  Expect.equals(27, c.x);
-  Expect.equals(21, c.y);
-  Expect.equals(7, c.z);
-  Expect.equals('A(27)B(22)C(7)', message);
-}