Remove uses of Options from utils directory.

utils/testrunner/utils.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.
 
 part of testrunner;
 
 /** Create a file [fileName] and populate it with [contents]. */
 void writeFile(String fileName, String contents) {
   var file = new File(fileName);
   file.writeAsStringSync(contents);
@@ skipping 75 matching lines @@
   }
   return files;
 }
 
 /**
  * Get the directory that testrunner lives in; we need it to import
  * support files into the generated scripts.
  */
 
 String get runnerDirectory {
-  var libDirectory = makePathAbsolute(new Options().script);
+  var libDirectory = makePathAbsolute(new Platform.script);
   return libDirectory.substring(0,
       libDirectory.lastIndexOf(Platform.pathSeparator));
 }
 
 /*
  * Run an external process [cmd] with command line arguments [args].
  * Returns a [Future] for when the process terminates.
  */
 Future _processHelper(String command, List<String> args,
     {String workingDir}) {
   var options = null;
   if (workingDir != null) {
     options = new ProcessOptions();
     options.workingDirectory = workingDir;
   }
   return Process.run(command, args, options)
       .then((result) => result.exitCode)
       .catchError((e) {
         print("$command ${args.join(' ')}: ${e.toString()}");
       });
 }