hg: shenandoah/jdk9/hotspot: Print GC cycle ID, and clean up VMOperations.

[ashipile at redhat.com]

Changeset: dd1f7d788094
Author:    shade
Date:      2017-01-27 17:21 +0100
URL:       http://hg.openjdk.java.net/shenandoah/jdk9/hotspot/rev/dd1f7d788094

Print GC cycle ID, and clean up VMOperations.

! src/share/vm/gc/shenandoah/shenandoahConcurrentThread.cpp
! src/share/vm/gc/shenandoah/vm_operations_shenandoah.cpp
! src/share/vm/gc/shenandoah/vm_operations_shenandoah.hpp