hg: shenandoah/jdk8/hotspot: [backport] 8229474: Shenandoah: Cleanup CM::update_roots()

[zgu at redhat.com]

Changeset: 03dc7e990da2
Author:    zgu
Date:      2019-08-13 13:01 -0400
URL:       https://hg.openjdk.java.net/shenandoah/jdk8/hotspot/rev/03dc7e990da2

[backport] 8229474: Shenandoah: Cleanup CM::update_roots()
Reviewed-by: rkennke

! src/share/vm/gc_implementation/shenandoah/shenandoahConcurrentMark.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahRootProcessor.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahRootProcessor.hpp