Add check for repeated options on test.dart command line. Revert debugging commit r3110.

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 347 matching lines @@
     if (!testPath.startsWith(dartDir) ||
         dartDir.endsWith('/frog')) {
       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.');
       }
     }
 
-    // TODO(whesse): Find out if this loop is turning the buildbot red.
-    // for (var vmOptions in optionsFromFile['vmOptions']) {
-    var vmOptions = optionsFromFile['vmOptions'][0]; {
-
+    for (var vmOptions in optionsFromFile['vmOptions']) {
       // Create a unique temporary directory for each set of vmOptions.
-      // TODO(whesse): Replace separate replaces with a RegExp when
+      // TODO(dart:429): Replace separate replaceAlls with a RegExp when
       // replaceAll(RegExp, String) is implemented.
       String optionsName = '';
       if (optionsFromFile['vmOptions'].length > 1) {
           optionsName = Strings.join(vmOptions, '-').replaceAll('-','')
                                                     .replaceAll('=','')
                                                     .replaceAll('/','');
       }
       Directory tempDir =
           createTemporaryDirectory(testPath, dartDir, optionsName);
 
@@ skipping 648 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);
   }
 }