cleanup to tools/testing/dart

tools/testing/dart/lib/test_progress.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_progress;
 
-import "dart:async";
-import "dart:io";
-import "dart:io" as io;
-import "dart:convert" show JSON;
-import "path.dart";
-import "status_file_parser.dart";
-import "test_runner.dart";
-import "test_suite.dart";
-import "utils.dart";
+import 'dart:async';
+import 'dart:convert' show JSON;
+import 'dart:io';
+import 'dart:io' as io show exitCode;
+
+import 'command.dart';
+import 'path.dart';
+import 'status_file_parser.dart';
+import 'summary_report.dart';
+import 'test_case.dart';
+import 'test_utils.dart';
+import 'utils.dart';
 
 String _pad(String s, int length) {
   StringBuffer buffer = new StringBuffer();
   for (int i = s.length; i < length; i++) {
     buffer.write(' ');
   }
   buffer.write(s);
   return buffer.toString();
 }
 
@@ skipping 635 matching lines @@
       return new VerboseProgressIndicator(startTime);
     case 'status':
       return new ProgressIndicator(startTime);
     case 'buildbot':
       return new BuildbotProgressIndicator(startTime);
     default:
       assert(false);
       break;
   }
 }