code: function hasSimilarSelectors(selectors1, selectors2) {
      var cursor1 = selectors1.head;
  
      while (cursor1 !== null) {
          var cursor2 = selectors2.head;
  
          while (cursor2 !== null) {
              if (cursor1.data.compareMarker === cursor2.data.compareMarker) {
                  return true;
              }
  
              cursor2 = cursor2.next;
          }
  
          cursor1 = cursor1.next;
      }
  
      return false;
  }
docs: check if simpleselectors has no equal specificity and element selector