[VectorAPI] Corner case test coverage

[Paul Sandoz]

Looks good. How about we rename the method to coreCaseValue, since it is now used in places other than comparison.

Paul. 

> On May 31, 2018, at 1:09 PM, Halimi, Jean-Philippe <jean-philippe.halimi at intel.com> wrote:
> 
> Dear all,
> 
> I would like to share a patch adding coverage for corner case testing in VectorAPI.
> 
> Could you please have a look at the following patch?
> http://cr.openjdk.java.net/~jphalimi/webrev_cornerCase_testCoverage_v1.1/
> 
> Thanks,
> 
> Jp