Remove uses of Options from tools directory. Fix platform_test.

tools/full-coverage.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.
 
 import "dart:async";
 import "dart:convert";
 import "dart:io";
 import "dart:isolate";
 import "dart:mirrors";
 
@@ skipping 282 matching lines @@
   static const int WORK = 3;
 
   final int type;
   final payload;
 
   Message(this.type, this.payload);
 }
 
 final env = new Environment();
 
-main() {
-  parseArgs();
+main(List<String> arguments) {
+  parseArgs(arguments);
 
   List files = filesToProcess(env.input);
   int filesPerWorker = files.length ~/ env.workers;
   List workerPorts = [];
   int doneCnt = 0;
 
   List failedResolves = [];
   List failedLoads = [];
   Map globalHitmap = {};
   int start = new DateTime.now().millisecondsSinceEpoch;
@@ skipping 77 matching lines @@
   // off by at max (#workers - 1).
   var p = spawnFunction(worker);
   workerPorts.add(p);
   p.send(new Message(Message.WORK, [sharedEnv, files]), port.toSendPort());
 
   return 0;
 }
 
 /// Checks the validity of the provided arguments. Does not initialize actual
 /// processing.
-parseArgs() {
+parseArgs(List<String> arguments) {
   var parser = new ArgParser();
 
   parser.addOption("sdk-root", abbr: "s",
                    help: "path to the SDK root");
   parser.addOption("package-root", abbr: "p",
                    help: "path to the package root");
   parser.addOption("in", abbr: "i",
                    help: "input(s): may be file or directory");
   parser.addOption("out", abbr: "o",
                    help: "output: may be file or stdout",
                    defaultsTo: "stdout");
   parser.addOption("workers", abbr: "j",
                    help: "number of workers",
                    defaultsTo: "1");
   parser.addFlag("pretty-print", abbr: "r",
                  help: "convert coverage data to pretty print format",
                  negatable: false);
   parser.addFlag("lcov", abbr :"l",
                  help: "convert coverage data to lcov format",
                  negatable: false);
   parser.addFlag("verbose", abbr :"v",
                  help: "verbose output",
                  negatable: false);
   parser.addFlag("help", abbr: "h",
                  help: "show this help",
                  negatable: false);
 
-  var args = parser.parse(new Options().arguments);
+  var args = parser.parse(arguments);
 
   printUsage() {
     print("Usage: dart full-coverage.dart [OPTION...]\n");
     print(parser.getUsage());
   }
 
   fail(String msg) {
     print("\n$msg\n");
     printUsage();
     exit(1);
@@ skipping 52 matching lines @@
   }
 
   try {
     env.workers = int.parse("${args["workers"]}");
   } catch (e) {
     fail("Invalid worker count: $e");
   }
 
   env.verbose = args["verbose"];
 }