anchor.diff:    }
   }
   
  -/////////////////////////////////////////////////////////////////////
  +////////////////////////////////////////////////////////////////////////////////
   
   /// The [CrossListing] class...
   class CrossListing extends JsProxy {
  
positive.code:   PreviousContentMapping();
  }
  
  /////////////////////////////////////////////////////////////////////
  
  /// The [RequestedSection] class...
  class RequestedSection extends JsProxy {
  
negative.code:   PreviousContentMapping get previousContent => _previousContent;
  
    PreviousContentMapping _previousContent;
  
    _RequestedSectionRegistry _requestedSections;
  
    /// The [RequestedSection] constructor...
    RequestedSection (BannerSection aSection) {
  