hg: panama/panama/jdk: add test

[paul.sandoz at oracle.com]

Changeset: 1e7707244dd9
Author:    psandoz
Date:      2017-09-26 11:10 -0700
URL:       http://hg.openjdk.java.net/panama/panama/jdk/rev/1e7707244dd9

add test

+ test/jdk/incubator/vector/AddTest.java