anchor.diff:    }
   
     /// Return the effective replacement offset.
  +  @useResult
     CheckTarget<int> get replacementOffset {
       return nest(
         value.replacementOffset,
  
positive.code:     );
    }
  
    CheckTarget<String?> get defaultArgumentListString {
      return nest(
        value.suggestion.defaultArgumentListString,
  
negative.code:     );
    }
  
    @useResult
    CheckTarget<int> get selectionOffset {
      return nest(
        value.suggestion.selectionOffset,
  