dart:io | Remove uses of Options class from standalone tests. Mark Options deprecated.

tests/standalone/io/secure_unauthorized_client.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.
 
 // Client for secure_bad_certificate_test, that runs in a subprocess.
 // The test verifies that the client bad certificate callback works.
 
 import "dart:async";
 import "dart:io";
 
@@ skipping 19 matching lines @@
           .then((SecureSocket socket) {
             expect(false);
           }, onError: (e) {
             expect(e is HandshakeException || e is SocketException);
           }));
   }
   return Future.wait(testFutures);
 }
 
 
-void main() {
-  final args = new Options().arguments;
+void main(List<String> args) {
   SecureSocket.initialize();
   runClients(int.parse(args[0]))
     .then((_) => print('SUCCESS'));
 }