anchor.diff:    final String repro;
     bool get isPassing => actual == 'Pass';
   
  -  _Record(this.suite, this.test, this.config, this.expected, this.actual, this.repro);
  +  _Record(this.suite, this.test, this.config, this.expected, this.actual,
  +      this.repro);
   
     int compareTo(_Record other) {
       if (suite == null && other.suite != null) return -1;
  
positive.code:         suite = test.substring(0, slash).trim();
          test = test.substring(slash + 1).trim();
        }
        config = line.substring("FAILED: ".length, space)
          .replaceAll('release_ia32', '')
          .replaceAll('release_x64', '');
      }
      if (line.startsWith("Expected: ")) {
        expected = line.substring("Expected: ".length).trim();
  
negative.code:     total++;
      if (record.isPassing) passing++;
    }
    print(
        'Total: ${total} unexpected result(s), $passing now passing, ${total - passing} now failing.');
    print('');
  }
  
  