[10] Review request for 8182041: File Chooser Shortcut Panel folders under on JDK 9

[Semyon Sadetsky]

Hello,

Please review fix for JDK10 (the changes involve AWT and Swing):
bug: https://bugs.openjdk.java.net/browse/JDK-8182041

webrev: http://cr.openjdk.java.net/~ssadetsky/8182041/webrev.00/

New API method was added letting to query shortcut panel entries for 
JFileChooser.

--Semyon