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

frog/tests/leg_only/closure_capture2_test.dart

-// Copyright (c) 2012, 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.
-
-closure0() {
-  // f and g will both capture a variable named 'x'. If we use the original
-  // name in the (shared) box then there will be troubles.
-  var f;
-  var g;
-  {
-    var x = 499;
-    // TODO(floitsch): remove name from functions.
-    f = fun() { return x; };
-    x++;
-  }
-  {
-    var x = 42;
-    // TODO(floitsch): remove name from functions.
-    g = fun() { return x; };
-    x++;
-  }
-  Expect.equals(500, f());
-  Expect.equals(43, g());
-}
-
-closure1() {
-  // f captures variable $0 which could yield to troubles with HForeign if we
-  // don't mangle correctly.
-  var $1 = 499;
-  // TODO(floitsch): remove name from functions.
-  var f = fun() { return $1; };
-  $1++;
-  Expect.equals(500, f());
-}
-
-main() {
-  closure0();
-  closure1();
-}