[vector] Additional tests for binary/unary ops to bring the coverage up

[Viswanathan, Sandhya]

Please find below a webev which extends the test coverage for binary/unary ops of Vector API:
http://cr.openjdk.java.net/~sviswanathan/vectorIntrinsics/TestCoverage/part1/webrev.00/

Best Regards,
Sandhya