Small-scale clean ups in test.dart, mainly around test_progress.

tools/testing/dart/test_options.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.
 
 library test_options_parser;
 
 import "dart:io";
 import "drt_updater.dart";
 import "test_suite.dart";
 import "path.dart";
@@ skipping 358 matching lines @@
       new _TestOptionSpecification(
           'write_debug_log',
           'Don\'t write debug messages to stdout but rather to a logfile.',
           ['--write-debug-log'],
           [],
           false,
           type: 'bool'),
       new _TestOptionSpecification(
           'write_test_outcome_log',
           'Write the outcome of all tests executed to a '
-          '"${TestUtils.testOutcomeFileName()}" file.',
+          '"${TestUtils.testOutcomeFileName}" file.',
           ['--write-test-outcome-log'],
           [],
           false,
           type: 'bool'),
       new _TestOptionSpecification(
           'reset_browser_configuration',
           'Browser specific reset of configuration. '
           'WARNING: Using this option may remove your bookmarks and '
           'other settings.',
           ['--reset-browser-configuration'],
@@ skipping 614 matching lines @@
         return option;
       }
     }
     print('Unknown test option $name');
     exit(1);
     return null; // Unreachable.
   }
 
   List<_TestOptionSpecification> _options;
 }