Various test script changes:

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");
 
 class ProgressIndicator {
   ProgressIndicator(this._startTime);
@@ skipping 98 matching lines @@
   int _completedTests() => _passedTests + _failedTests;
 
   int _foundTests = 0;
   int _passedTests = 0;
   int _failedTests = 0;
   Date _startTime;
 }
 
 
 class CompactProgressIndicator extends ProgressIndicator {
-  CompactProgressIndicator(Date start_time) : super(start_time);
+  CompactProgressIndicator(Date startTime) : super(startTime);
 
   void allDone() {
   }
 
   void _printProgress() {
     var percent = ((_completedTests() / _foundTests) * 100).floor().toString();
     var percentPadded = _pad(percent, 5);
     var passedPadded = _pad(_passedTests.toString(), 5);
     var failedPadded = _pad(_failedTests.toString(), 5);
     var progressLine =
         '\r[${_timeString()} | $percentPadded% | ' +
         '+$passedPadded | -$failedPadded]';
     stdout.write(progressLine.charCodes());
   }
 
   void _printStartProgress(TestCase test) => _printProgress();
   void _printDoneProgress(TestCase test) => _printProgress();
 }
 
 
 class LineProgressIndicator extends ProgressIndicator {
-  LineProgressIndicator(Date start_time) : super(start_time);
+  LineProgressIndicator(Date startTime) : super(startTime);
 
   void allDone() {
     _printStatus();
   }
 
   void _printStartProgress(TestCase test) {
   }
 
   void _printDoneProgress(TestCase test) {
     var status = 'pass';
     if (test.output.unexpectedOutput) {
       status = 'fail';
     }
     print('Done ${test.displayName}: $status');
   }
 }
 
 
 class VerboseProgressIndicator extends ProgressIndicator {
-  VerboseProgressIndicator(Date start_time) : super(start_time);
+  VerboseProgressIndicator(Date startTime) : super(startTime);
 
   void allDone() {
     _printStatus();
   }
 
   void _printStartProgress(TestCase test) {
     print('Starting ${test.displayName}...');
   }
 
   void _printDoneProgress(TestCase test) {
     var status = 'pass';
     if (test.output.unexpectedOutput) {
       status = 'fail';
     }
     print('Done ${test.displayName}: $status');
   }
 }
 
 
 class StatusProgressIndicator extends ProgressIndicator {
-  StatusProgressIndicator(Date start_time) : super(start_time);
+  StatusProgressIndicator(Date startTime) : super(startTime);
 
   void allDone() {
     _printStatus();
   }
 
   void _printStartProgress(TestCase test) {
   }
 
   void _printDoneProgress(TestCase test) {
   }
 }
 
 
 class BuildbotProgressIndicator extends ProgressIndicator {
-  BuildbotProgressIndicator(Date start_time) : super(start_time);
+  BuildbotProgressIndicator(Date startTime) : super(startTime);
 
   void allDone() {
     _printStatus();
   }
 
   void _printStartProgress(TestCase test) {
   }
 
   void _printDoneProgress(TestCase test) {
     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 @@@');
   }
 }