cleanup to tools/testing/dart

tools/testing/dart/test_configurations.dart

 // Copyright (c) 2012, 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_configurations;
 
-import "dart:async";
+import 'dart:async';
 import 'dart:io';
-import "dart:math" as math;
+import 'dart:math' as math;
 
-import "browser_controller.dart";
-import "co19_test_config.dart";
-import "http_server.dart";
-import "path.dart";
-import "test_progress.dart";
-import "test_runner.dart";
-import "test_suite.dart";
-import "utils.dart";
-import "vm_test_config.dart";
+import 'co19_test_config.dart';
+import 'lib/browser_controller.dart';
+import 'lib/http_server.dart';
+import 'lib/path.dart';
+import 'lib/test_progress.dart';
+import 'lib/test_utils.dart';
+import 'lib/utils.dart';
+import 'test_runner.dart';
+import 'test_suite.dart';
+import 'vm_test_suite.dart';
 
 /**
  * The directories that contain test suites which follow the conventions
  * required by [StandardTestSuite]'s forDirectory constructor.
  * New test suites should follow this convention because it makes it much
  * simpler to add them to test.dart.  Existing test suites should be
  * moved to here, if possible.
 */
 final TEST_SUITE_DIRECTORIES = [
     new Path('pkg'),
@@ skipping 256 matching lines @@
                      recordingOutputPath);
   }
 
   // Start all the HTTP servers required before starting the process queue.
   if (serverFutures.isEmpty) {
     startProcessQueue();
   } else {
     Future.wait(serverFutures).then((_) => startProcessQueue());
   }
 }