code: private ParamTag[] paramTags(boolean typeParams) {
          ListBuffer<ParamTag> found = new ListBuffer<ParamTag>();
          for (Tag next : tagList) {
              if (next instanceof ParamTag) {
                  ParamTag p = (ParamTag)next;
                  if (typeParams == p.isTypeParameter()) {
                      found.append(p);
                  }
              }
          }
          return found.toArray(new ParamTag[found.length()]);
      }
docs: Return param tags in this comment.  If typeParams is true
  include only type param tags, otherwise include only ordinary
  param tags.