test rename overhaul: step 12 - standalone

tests/standalone/src/io/ProcessStdIOScript.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.
-//
-// Utility script to echo stdin to stdout or stderr or both.
-
-#import("dart:io");
-
-main() {
-  var options = new Options();
-  if (options.arguments.length > 0) {
-    if (options.arguments[0] == "0") {
-      stdin.onData = () => stdout.write(stdin.read());
-    } else if (options.arguments[0] == "1") {
-      stdin.onData = () => stderr.write(stdin.read());
-    } else if (options.arguments[0] == "2") {
-      stdin.onData = () {
-        var data = stdin.read();
-        stdout.write(data);
-        stderr.write(data);
-      };
-    }
-  }
-}