[8] Review request for JDK-8001808: Create a test for 8000327

[vera akulova]

Hello,

Please review a fix for the issue:
   JDK-8001808: Create a test for 8000327

The webrev is http://cr.openjdk.java.net/~kshefov/8001808/webrev/

The new automatic regression test checking that ActionListener called just once 
for screen menu item on macosx.

Thanks,
Vera.