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

frog/tests/leg/gvn_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.
-
-#import("compiler_helper.dart");
-
-final String TEST_ONE = @"""
-void foo(bar) {
-  for (int i = 0; i < 1; i++) {
-    print(1 + bar);
-    print(1 + bar);
-  }
-}
-""";
-
-main() {
-  String generated = compile(TEST_ONE, 'foo');
-  RegExp regexp = const RegExp(@"1 \+ bar");
-  Iterator matches = regexp.allMatches(generated).iterator();
-  Expect.isTrue(matches.hasNext());
-  matches.next();
-  Expect.isFalse(matches.hasNext());
-}