RFR(S): JDK-8042155 Tests for stack guard pages have to be cleaned up

[Dmitry Samersoff]

Hi Everyone,

Please, review test changes:

http://cr.openjdk.java.net/~dsamersoff/JDK-8042155/webrev.01/

The fix combine tests for 6929067 and 8009062 into single, more
sophisticated test.

-Dmitry

-- 
Dmitry Samersoff
Oracle Java development team, Saint Petersburg, Russia
* I would love to change the world, but they won't give me the sources.