anchor.diff:  import 'package:async/async.dart';
   import 'package:http_multi_server/http_multi_server.dart';
   import 'package:meta/meta.dart';
  -// TODO(bkonyi): remove deprecated member usage, https://github.com/flutter/flutter/issues/51951
  -// ignore: deprecated_member_use
  -import 'package:package_config/discovery.dart';
  -// TODO(bkonyi): remove deprecated member usage, https://github.com/flutter/flutter/issues/51951
  -// ignore: deprecated_member_use
  -import 'package:package_config/packages.dart';
  +import 'package:package_config/package_config.dart';
   import 'package:path/path.dart' as p; // ignore: package_path_import
   import 'package:pool/pool.dart';
   import 'package:shelf/shelf.dart' as shelf;
  
positive.code:       ));
  
    /// The precompiled test javascript.
    File get testDartJs => globals.fs.file(globals.fs.path.join(
          testUri.toFilePath(),
          'dart.js',
        ));
  
    File get testHostDartJs => globals.fs.file(globals.fs.path.join(
          testUri.toFilePath(),
          'src',
          'runner',
          'browser',
          'static',
          'host.dart.js',
        ));
  
    Future<shelf.Response> _handleStaticArtifact(shelf.Request request) async {
      if (request.requestedUri.path.contains('require.js')) {
  
negative.code: 
    FutureOr<shelf.Response> _packageFilesHandler(shelf.Request request) async {
      if (request.requestedUri.pathSegments.first == 'packages') {
        final PackageConfig packageConfig = await _packagesFuture;
        final Uri fileUri = packageConfig.resolve(Uri(
          scheme: 'package',
          pathSegments: request.requestedUri.pathSegments.skip(1),
        ));
  