[9] Review request for 8157827: AWT_Desktop/Automated/Exceptions/BasicTest loads incorrect GTK version when jdk.gtk.version=3

[Semyon Sadetsky]

Hello,

Please review fix for JDK9:
bug: https://bugs.openjdk.java.net/browse/JDK-8157827

webrev: http://cr.openjdk.java.net/~ssadetsky/8157827/webrev.00/

In the Desktop initialization procedure GtkVersions#ordinal() was used 
instead of GtkVersions#getNumber().

--Semyon