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

third_party/pkg/js/build.dart

Index: third_party/pkg/js/build.dart
diff --git a/third_party/pkg/js/build.dart b/third_party/pkg/js/build.dart
index 6e07343b7265c6f03be11a59ff3cf975a5d5bc98..1b36d2e13f03328c0d14654af332bdf1e2f58beb 100644
--- a/third_party/pkg/js/build.dart
+++ b/third_party/pkg/js/build.dart
@@ -8,13 +8,12 @@ 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);
     }