code: public void markText(String text, int startLineno, int startCharno,
        int endLineno, int endCharno) {
      if (currentMarker != null) {
        JSDocInfo.StringPosition position = new JSDocInfo.StringPosition();
        position.setItem(text);
        position.setPositionInformation(startLineno, startCharno,
            endLineno, endCharno);
        currentMarker.setDescription(position);
      }
    }
docs: Adds a textual block to the current marker.