Move unittest from lib to pkg.

tools/testing/dart/test_suite.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.
 
 /**
  * Classes and methods for enumerating and preparing tests.
  *
  * This library includes:
  *
  * - Creating tests by listing all the Dart files in certain directories,
@@ skipping 603 matching lines @@
       Path expectedOutput = null;
       if (new File.fromPath(pngPath).existsSync()) {
         expectedOutput = pngPath;
         content = getHtmlLayoutContents(scriptType, '$filePrefix$scriptPath');
       } else if (new File.fromPath(txtPath).existsSync()) {
         expectedOutput = txtPath;
         content = getHtmlLayoutContents(scriptType, '$filePrefix$scriptPath');
       } else {
         content = getHtmlContents(
           filename,
-          '$filePrefix${dartDir.append("lib/unittest/test_controller.js")}',
+          '$filePrefix${dartDir.append("pkg/unittest/test_controller.js")}',
           '$filePrefix${dartDir.append("client/dart.js")}',
           scriptType,
           '$filePrefix$scriptPath');
       }
       htmlTest.writeStringSync(content);
       htmlTest.closeSync();
 
       // Construct the command(s) that compile all the inputs needed by the
       // browser test. For running Dart in DRT, this will be noop commands.
       List<Command> commands = [];
@@ skipping 794 matching lines @@
  * $noCrash tests are expected to be flaky but not crash
  * $pass tests are expected to pass
  * $failOk tests are expected to fail that we won't fix
  * $fail tests are expected to fail that we should fix
  * $crash tests are expected to crash that we should fix
  * $timeout tests are allowed to timeout
 """;
     print(report);
    }
 }