anchor.diff:    
     final bool polygon;
     
  -  SearchResults({ this.timestamp, this.attribution, this.moreUrl, this.queryString, this.polygon });
  +  /**
  +   * Creates a new [SearchResult] with given attributes.
  +   */
  +  SearchResults({ this.timestamp, this.attribution, this.moreUrl, this.queryString, this.polygon, this.places });
     
     String toString() {
       var string = new List();
  
positive.code: //            ,
  //            city: placeXml.query("city").
        );
        searchResults.places.add(place);
      });
      
      return searchResults;    
    }
    
  
negative.code:  
    static convertXmlToSearchResults(String xml) {
      XmlElement tree = XML.parse(xml);
      
      List places = new List<Place>();
      
  