Revert stray edit to test.dart.

tools/testing/dart/test_runner.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 executing tests.
  *
  * This module includes:
  * - Managing parallel execution of tests, including timeout checks.
  * - Evaluating the output of each test as pass/fail/crash/timeout.
@@ skipping 996 matching lines @@
    * Java server.
    */
   void _startSeleniumServer() {
     // Get the absolute path to the Selenium jar.
     String filePath = new Options().script;
     String pathSep = new Platform().pathSeparator();
     int index = filePath.lastIndexOf(pathSep);
     filePath = filePath.substring(0, index) + '${pathSep}testing${pathSep}';
     var dir = new Directory(filePath);
     dir.onFile = (String file) {
-      if (const RegExp("selenium-server-standalone-.*\.jar").hasMatch(file)
+      if (const RegExp(@"selenium-server-standalone-.*\.jar").hasMatch(file)

[Emily Fortuna, 2012/03/13 00:30:32]

But if we add the @ character, we'd be using a raw string that doesn't have any
escape characters, but the \ in this line is used as an escape character. See
http://www.dartlang.org/docs/spec/dartLangSpec.pdf page 40.

           && _seleniumServer == null) {
         _seleniumServer = new Process.start('java', ['-jar', file]);
         // Heads up: there seems to an obscure data race of some form in
         // the VM between launching the server process and launching the test
         // tasks that disappears when you read IO (which is convenient, since
         // that is our condition for knowing that the server is ready).
         StringInputStream stdoutStringStream =
             new StringInputStream(_seleniumServer.stdout);
         StringInputStream stderrStringStream =
             new StringInputStream(_seleniumServer.stderr);
@@ skipping 77 matching lines @@
         // the developer doesn't waste his or her time trying to fix a bunch of
         // tests that appear to be broken but were actually just flakes that
         // didn't get retried because there had already been one failure.
         bool allowRetry = _MAX_FAILED_NO_RETRY > _progress.numFailedTests;
         new RunningProcess(test, allowRetry, this).start();
       }
       _numProcesses++;
     }
   }
 }