code: public void buildAnnotationTypeFieldsSummary(XMLNode node, Content memberSummaryTree) {
          MemberSummaryWriter writer =
                  memberSummaryWriters[VisibleMemberMap.ANNOTATION_TYPE_FIELDS];
          VisibleMemberMap visibleMemberMap =
                  visibleMemberMaps[VisibleMemberMap.ANNOTATION_TYPE_FIELDS];
          addSummary(writer, visibleMemberMap, false, memberSummaryTree);
      }
docs: Build the summary for fields.
  
  @param node the XML element that specifies which components to document
  @param memberSummaryTree the content tree to which the documentation will be added