[7u10] Request for approval for CR 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.