hg: panama/panama/jdk: Double256Vector JDK support for VectorAPI Implementation

[shravya.rukmannagari at intel.com]

Changeset: d83170db025b
Author:    srukmannagar
Date:      2017-09-28 17:00 -0700
URL:       http://hg.openjdk.java.net/panama/panama/jdk/rev/d83170db025b

Double256Vector JDK support for VectorAPI Implementation

! src/jdk.incubator.vector/share/classes/jdk/incubator/vector/DoubleVector.java
! src/jdk.incubator.vector/share/classes/jdk/incubator/vector/X-Vector.java.template