RFR: JDK-8149777: Enable enhanced failure handler for "make test"

[Magnus Ihse Bursie]

Is the test-failure-handle used to test that the failure handler is correct? It seems a bit odd, since most other tests has their main purpose to be run, and the build part is just a necessary thing, but here I presume that the main thing is to build the handler so other tests can use it, and it is not clear what the test itself mean. Otoh, I can't see any other way to express this. 

/Magnus

> 12 apr. 2016 kl. 16:00 skrev Erik Joelsson <erik.joelsson at oracle.com>:
> 
> Please review this change which adds a proper makefile and build sequence for the failure-handler jtreg plugin. It also adds the failure handler to the test image and makes the hotspot and jdk test/Makefile's pick it up when available.
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8149777
> Webrev: http://cr.openjdk.java.net/~erikj/8149777/webrev.03/
> 
> /Erik