code: function _doFindInWorkingSet(paneId, fullPath, method) {
          var result = -1;
          _forEachPaneOrPanes(paneId, function (pane) {
              var index = pane[method].call(pane, fullPath);
              if (index >= 0) {
                  result = index;
                  return false;
              }
          });
          return result;
      }
docs: Helper to abastract the common working set search functions
  @param {!string} paneId - id of the pane to search or ALL_PANES to search all panes
  @param {!string} fullPath - path of the file to locate
  @param {!string} method - name of the method to use for searching
  "findInViewList", "findInViewListAddedOrder" or "FindInViewListMRUOrder"
  
  @private