hg: jdk/sandbox: 8244243: Shenandoah: Cleanup Shenandoah phase timing tracking and JFR event supporting

[chris.hegarty at oracle.com]

Changeset: ca61965cfcf4
Author:    zgu
Date:      2020-05-07 17:44 -0400
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/ca61965cfcf4

8244243: Shenandoah: Cleanup Shenandoah phase timing tracking and JFR event supporting
Reviewed-by: shade

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