Fix test.dart on Frogium component, enable in buildbot.

tools/testing/dart/test_suite.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.
 
 #library("test_suite");
 
 #import("status_file_parser.dart");
 #import("test_runner.dart");
 #import("multitest.dart");
 
@@ skipping 333 matching lines @@
     bool isWebTest = optionsFromFile['containsDomImport'];
     bool isLibraryDefinition = optionsFromFile['isLibraryDefinition'];
     if (!isLibraryDefinition && optionsFromFile['containsSourceOrImport']) {
       print('Warning for $filename: Browser tests require #library ' +
             'in any file that uses #import or #source');
     }      
 
     final String component = configuration['component'];
     final String testPath = new File(filename).fullPathSync();
     String dartDir = new File('.').fullPathSync();
-    if (!testPath.startsWith(dartDir)) {
+    if (!testPath.startsWith(dartDir) ||
+        dartDir.endsWith('/frog')) {

[ahe, 2012/01/06 15:23:06]

This looks like a hack, but I guess you know what you're doing.

       dartDir = new File('..').fullPathSync();
       if (!testPath.startsWith(dartDir)) {
         print('Run test.dart from the dart directory or' +
               ' an immediate subdirectory only.');
         Expect.fail('Could not find top level dart directory.');
       }
     }
 
     Directory tempDir = createTemporaryDirectory(testPath, dartDir);
 
@@ skipping 600 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);
   }
 }