hg: panama/dev: Add a method to obtain a preferred vector species, selecting

[paul.sandoz at oracle.com]

Changeset: bee48e4d241b
Author:    psandoz
Date:      2018-01-29 12:46 -0800
URL:       http://hg.openjdk.java.net/panama/dev/rev/bee48e4d241b

Add a method to obtain a preferred vector species, selecting
the maximum sized shape for the element type supported by the
hardware.

! src/java.base/share/classes/jdk/internal/misc/Unsafe.java
! src/java.base/share/classes/module-info.java
! src/jdk.incubator.vector/share/classes/jdk/incubator/vector/Vector.java
+ test/jdk/jdk/incubator/vector/PreferredSpeciesTest.java