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

frog/tests/leg_only/static_var_no_initializer_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.
-
-int one;
-int x;
-
-void testOne() {
-  Expect.equals(1, one);
-}
-
-void testX(var expected) {
-  Expect.equals(expected, x);
-}
-
-void increaseX() {
-  x = x + 1;
-}
-
-void main() {
-  one = 1;
-  x = 5;
-  Expect.equals(1, one);
-  testOne();
-  Expect.equals(5, x);
-  testX(5);
-  x = x + 1;
-  Expect.equals(6, x);
-  testX(6);
-  increaseX();
-  Expect.equals(7, x);
-  testX(7);
-}