JSDoc fixes

src/tile.js

@@ -44,7 +44,7 @@
  *      coordinates.
  * @param {Boolean} exists Is this tile a part of a sparse image? ( Also has
  *      this tile failed to load? )
- * @param {String|() => String} url The URL of this tile's image or a function that returns a url.
+ * @param {String|Function} url The URL of this tile's image or a function that returns a url.
  * @param {CanvasRenderingContext2D} context2D The context2D of this tile if it
  *      is provided directly by the tile source.
  * @param {Boolean} loadWithAjax Whether this tile image should be loaded with an AJAX request .
@@ -98,7 +98,7 @@ $.Tile = function(level, x, y, bounds, exists, url, context2D, loadWithAjax, aja
      * Private property to hold string url or url retriever function.
      * Consumers should access via Tile.getUrl()
      * @private
-     * @member {String|() => String} url
+     * @member {String|Function} url
      * @memberof OpenSeadragon.Tile#
      */
     this._url     = url;

src/tiledimage.js

@@ -1690,7 +1690,7 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
          * @event tile-loaded
          * @memberof OpenSeadragon.Viewer
          * @type {object}
-         * @property {Image || *} image - The image (data) of the tile. Deprecated.
+         * @property {Image|*} image - The image (data) of the tile. Deprecated.
          * @property {*} data image data, the data sent to ImageJob.prototype.finish(), by default an Image object
          * @property {OpenSeadragon.TiledImage} tiledImage - The tiled image of the loaded tile.
          * @property {OpenSeadragon.Tile} tile - The tile which has been loaded.

src/tilesource.js

@@ -618,7 +618,7 @@ $.TileSource.prototype = {
      * @param {Number} level
      * @param {Number} x
      * @param {Number} y
-     * @returns {String|() => string} url - A string for the url or a function that returns a url string.
+     * @returns {String|Function} url - A string for the url or a function that returns a url string.
      * @throws {Error}
      */
     getTileUrl: function( level, x, y ) {