anchor.diff:  import 'package:kernel/binary/ast_to_binary.dart' show BinaryPrinter;
   import 'package:kernel/kernel.dart' show Program, Library, CanonicalName;
   import 'package:package_config/packages.dart' show Packages;
  -
   import 'package:test/test.dart';
   import 'package:test_reflective_loader/test_reflective_loader.dart';
   
  
positive.code:   }
  
    test_getUriTranslator_implicitPackagesFile_noPackages() async {
      // Fake the existence of the base directory.
      fileSystem
          .entityForUri(Uri.parse('file:///base/location/'))
          .writeAsStringSync('');
      var errors = [];
      // .packages file should be ignored.
      var raw = new CompilerOptions()
  
negative.code:   }
  
    test_getUriTranslator_implicitPackagesFile_nextToScript() async {
      // Create the base directory.
      fileSystem
          .entityForUri(Uri.parse('file:///base/location/'))
          .createDirectory();
      // Packages directory should be ignored (.packages file takes precedence).
      fileSystem
          .entityForUri(Uri.parse('file:///base/location/packages/'))
          .createDirectory();
      // This .packages file should be ignored.
      fileSystem
          .entityForUri(Uri.parse('file:///.packages'))
  