Proposal to reuse existing equality testing in unit tests

[Doug Simon]

Tom,

I noticed the special logic in KernelTester for comparing results of Okra based executions and sequential executions. As far as I can tell, this duplicates code that already exists in Graal and Junit. Could you please review this patch to remove the redundant logic:

http://cr.openjdk.java.net/~dnsimon/use-existing-equality-testing/

-Doug