Remove uses of Options from pkg, samples, tests, and third_party directories.

third_party/pkg/js/build.dart

 #!/usr/bin/env 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.
 
 library build;
 
 import 'tools/create_bootstrap.dart' as createBootstrap;
 import 'dart:io';
 
-void main() {
-  final options = new Options();
-  final scriptPath = new Path(options.script).directoryPath;
+void main(List<String> arguments) {
+  final scriptPath = new Path(Platform.script).directoryPath;
   final libPath = scriptPath.append('lib');
 
   final changedOpt = "--changed=${libPath.append('js.dart')}";
-  for (String arg in new Options().arguments) {
+  for (String arg in arguments) {
     if (arg == changedOpt) {
       createBootstrap.create(libPath);
     }
   }
 }