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

pkg/intl/test/message_extraction/generate_from_json.dart

 #!/usr/bin/env dart
 // Copyright (c) 2013, 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.
 
 /**
  * A main program that takes as input a source Dart file and a number
  * of JSON files representing translations of messages from the corresponding
  * Dart file. See extract_to_json.dart and make_hardcoded_translation.dart.
  *
@@ skipping 12 matching lines @@
 import 'package:path/path.dart' as path;
 import 'package:args/args.dart';
 import 'package:serialization/serialization.dart';
 
 /**
  * Keeps track of all the messages we have processed so far, keyed by message
  * name.
  */
 Map<String, MainMessage> messages;
 
-main() {
+main(List<String> args) {
   var targetDir;
-  var args = new Options().arguments;
   var parser = new ArgParser();
   parser.addFlag("suppress-warnings", defaultsTo: false,
       callback: (x) => suppressWarnings = x);
   parser.addOption("output-dir", defaultsTo: '.',
       callback: (x) => targetDir = x);
   parser.addOption("generated-file-prefix", defaultsTo: '',
       callback: (x) => generatedFilePrefix = x);
   parser.parse(args);
   var dartFiles = args.where((x) => x.endsWith("dart")).toList();
   var jsonFiles = args.where((x) => x.endsWith(".json")).toList();
@@ skipping 66 matching lines @@
 class BasicTranslatedMessage extends TranslatedMessage {
   BasicTranslatedMessage(String name, translated) :
       super(name, translated);
 
   MainMessage get originalMessage =>
       (super.originalMessage == null) ? _findOriginal() : super.originalMessage;
 
   // We know that our [id] is the name of the message, which is used as the
   //key in [messages].
   MainMessage _findOriginal() => originalMessage = messages[id];
-}
+}