/**
 * Function.
 * version 0.0.0
 * Feature	        Chrome  Firefox Internet Explorer   Opera	Safari	Edge
 * Basic support	  ?       ?       ?   	              ?     ?       ?
 * -------------------------------------------------------------------------------
 */

/**
 * Function.prototype.displayName
 * version 0.0.0
 * Feature	        Chrome  Firefox Internet Explorer   Opera	Safari	Edge
 * Basic support	  No      13      No                  No    No      No
 * -------------------------------------------------------------------------------
 */

add new item for polyfill