hg: shenandoah/jdk8u/hotspot: Sync up vm_operations_shenandoah.* against JDK 9.

[ashipile at redhat.com]

Changeset: b822aaaf5b7b
Author:    shade
Date:      2017-02-15 17:13 +0100
URL:       http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/b822aaaf5b7b

Sync up vm_operations_shenandoah.* against JDK 9.

! src/share/vm/gc_implementation/shenandoah/vm_operations_shenandoah.cpp
! src/share/vm/gc_implementation/shenandoah/vm_operations_shenandoah.hpp