dart:io | Add test of command-line arguments passed to main, remove test of Options object.

tests/standalone/io/options_test.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.
-// Stress test isolate generation.
-// DartOptions=tests/standalone/io/options_test.dart 10 options_test 20
-
-import "package:expect/expect.dart";
-import "dart:math";
-import "dart:io";
-
-main() {
-  var opts = new Options();
-
-  // Basic test for functionality.
-  Expect.equals(3, opts.arguments.length);
-  Expect.equals(10, int.parse(opts.arguments[0]));
-  Expect.equals("options_test", opts.arguments[1]);
-  Expect.equals(20, int.parse(opts.arguments[2]));
-
-  // Now add an additional argument.
-  opts.arguments.add("Fourth");
-  Expect.equals(4, opts.arguments.length);
-  Expect.equals(10, int.parse(opts.arguments[0]));
-  Expect.equals("options_test", opts.arguments[1]);
-  Expect.equals(20, int.parse(opts.arguments[2]));
-  Expect.equals("Fourth", opts.arguments[3]);
-
-  // Check that a new options object still gets the original arguments.
-  var opts2 = new Options();
-  Expect.equals(3, opts2.arguments.length);
-  Expect.equals(10, int.parse(opts2.arguments[0]));
-  Expect.equals("options_test", opts2.arguments[1]);
-  Expect.equals(20, int.parse(opts2.arguments[2]));
-}