Fix progress indicator typo.

tools/testing/dart/test_progress.dart

 // Copyright (c) 2011, 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_progress");
 
 #import("test_runner.dart");
 #import("test_suite.dart");
 
 class ProgressIndicator {
@@ skipping 221 matching lines @@
     if (test.output.unexpectedOutput) {
       status = 'fail';
     }
     print('Done ${test.displayName}: $status');
   }
 }
 
 
 class VerboseProgressIndicator extends ProgressIndicator {
   VerboseProgressIndicator(Date startTime, bool printTiming)
-      : super(startTime, bool printTiming);
+      : super(startTime, printTiming);
 
   void _printStartProgress(TestCase test) {
     print('Starting ${test.displayName}...');
   }
 
   void _printDoneProgress(TestCase test) {
     var status = 'pass';
     if (test.output.unexpectedOutput) {
       status = 'fail';
     }
@@ skipping 25 matching lines @@
     var status = 'pass';
     if (test.output.unexpectedOutput) {
       status = 'fail';
     }
     var percent = ((_completedTests() / _foundTests) * 100).toInt().toString();
     print('Done ${test.displayName}: $status');
     print('@@@STEP_CLEAR@@@');
     print('@@@STEP_TEXT@ $percent% +$_passedTests -$_failedTests @@@');
   }
 }