function groupElementsLinkFnWrapper(linkFn, attrStart, attrEnd) {
      return function groupedElementsLink(scope, element, attrs, controllers, transcludeFn) {
        element = groupScan(element[0], attrStart, attrEnd);
        return linkFn(scope, element, attrs, controllers, transcludeFn);
      };
    }
Wrapper for linking function which converts normal linking function into a grouped
linking function.
@param linkFn
@param attrStart
@param attrEnd
@returns {Function}