RFR(M): 8160657 - compiler hotspot tests should be enhanced to have run driver instruction where applicable

[Dmitrij Pochepko]

Hi,

please take a look at patch for: 8160657 - compiler hotspot tests should 
be enhanced to have run driver instruction where applicable

A "@run main" jtreg directive was replaced with "@run driver" in 
applicable places. Also, required minor code changes were added.

This patch was contributed by Igor Ignatyev.

webrev: http://cr.openjdk.java.net/~dpochepk/iignatyev/8160657/webrev.00/
CR: https://bugs.openjdk.java.net/browse/JDK-8160657

Thanks,
Dmitrij