Not properly handling backslashes for extra files on Windows.

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 510 matching lines @@
       List<Command> commands = [];
       if (component != 'dartium') {
         commands.add(_compileCommand(
             dartWrapperFilename, compiledDartWrapperFilename,
             component, tempDir.path, vmOptions));
 
         // some tests require compiling multiple input scripts.
         List<String> otherScripts = optionsFromFile['otherScripts'];
         for (String name in otherScripts) {
           int end = filename.lastIndexOf('/');
+          if (new Platform().operatingSystem() == 'windows' && end == -1) {

[Siggi Cherem (dart-lang), 2012/03/12 20:44:08]

seems odd though - the filenames come from a string annotation, they are not
processed or generated by any dart:io API

+            end = filename.lastIndexOf('\\');
+          }
           if (end == -1) {
             print('Warning: error processing "OtherScripts" of $filename.');
             print('Skipping test ($testName).');
             return;
           }
           String dir = filename.substring(0, end);
           end = name.lastIndexOf('.dart');
           if (end == -1) {
             print('Warning: error processing "OtherScripts" in $filename.');
             print('Skipping test ($testName).');
@@ skipping 693 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);
    }
 }