hg: shenandoah/jdk: Minor cleanups

[zgu at redhat.com]

Changeset: 125606c17be3
Author:    zgu
Date:      2018-03-08 10:15 -0500
URL:       http://hg.openjdk.java.net/shenandoah/jdk/rev/125606c17be3

Minor cleanups

! src/hotspot/share/gc/shenandoah/shenandoahBarrierSet.cpp
! src/hotspot/share/gc/shenandoah/shenandoahCodeRoots.cpp
! src/hotspot/share/gc/shenandoah/shenandoahHeap.hpp
! src/hotspot/share/gc/shenandoah/shenandoahHeap.inline.hpp