Remove frog from the repository.

frog/tests/leg/unparser_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.
-
-#import('parser_helper.dart');
-#import("../../../lib/compiler/implementation/tree/tree.dart");
-
-testUnparse(String statement) {
-  Node node = parseStatement(statement);
-  Expect.equals(statement, node.unparse(false));
-}
-
-testGenericTypes() {
-  testUnparse('var x=new List<List<int>>();');
-  testUnparse('var x=new List<List<List<int>>>();');
-  testUnparse('var x=new List<List<List<List<int>>>>();');
-  testUnparse('var x=new List<List<List<List<List<int>>>>>();');
-}
-
-testForLoop() {
-  testUnparse('for(;i<100;i++){}');
-  testUnparse('for(i=0;i<100;i++){}');
-}
-
-main() {
-  testGenericTypes();
-  testForLoop();
-}