public RelatedElement(int start, int length, RelatedElementKind kind, int cursorLeft, int cursorRight)
     : base(start, length)
 {
     this.Kind        = kind;
     this.CursorLeft  = cursorLeft;
     this.CursorRight = cursorRight;
 }
 public RelatedElement(int start, int length, RelatedElementKind kind)
     : this(start, length, kind, start, start + length)
 {
 }