hg: shenandoah/jdk10: Single GCTimer shared by all operations

[ashipile at redhat.com]

Changeset: 4050463704a4
Author:    shade
Date:      2018-01-31 12:29 +0100
URL:       http://hg.openjdk.java.net/shenandoah/jdk10/rev/4050463704a4

Single GCTimer shared by all operations

! src/hotspot/share/gc/shenandoah/shenandoahConcurrentMark.cpp
! src/hotspot/share/gc/shenandoah/shenandoahConcurrentThread.cpp
! src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp
! src/hotspot/share/gc/shenandoah/shenandoahMarkCompact.cpp
! src/hotspot/share/gc/shenandoah/shenandoahMarkCompact.hpp
! src/hotspot/share/gc/shenandoah/shenandoahUtils.cpp
! src/hotspot/share/gc/shenandoah/shenandoahUtils.hpp