anchor.diff:  import 'file_generator_test.dart' as file_generator;
   import 'generated_message_test.dart' as generated_message;
   import 'hash_code_test.dart' as hash_code;
  +import 'high_tagnumber_test.dart' as high_tagnumber;
   import 'import_test.dart' as import_prefix;
  +import 'import_public_test.dart' as import_public;
   import 'indenting_writer_test.dart' as indenting_writer;
   import 'json_test.dart' as json;
   import 'leading_underscores_test.dart' as leading_underscores;
  
positive.code:   file_generator.main();
    generated_message.main();
    hash_code.main();
    import_prefix.main();
    indenting_writer.main();
    json.main();
    leading_underscores.main();
  
negative.code: import 'omit_message_names_test.dart' as omit_message_names;
  import 'protoc_options_test.dart' as protoc_options;
  import 'repeated_field_test.dart' as repeated_field;
  import 'reserved_names_test.dart' as reserved_names;
  import 'service_test.dart' as service;
  import 'service_generator_test.dart' as service_generator;
  import 'to_builder_test.dart' as to_builder;
  