hg: shenandoah/jdk8u/hotspot: Improve logging of GC phases in Shenandoah.

[roman at kennke.org]

Changeset: c1b5450e17dd
Author:    rkennke
Date:      2016-08-05 08:20 -0400
URL:       http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/c1b5450e17dd

Improve logging of GC phases in Shenandoah.

! src/share/vm/gc_implementation/shenandoah/shenandoahCollectorPolicy.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahConcurrentMark.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahConcurrentThread.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeap.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahMarkCompact.cpp
! src/share/vm/gc_implementation/shenandoah/vm_operations_shenandoah.cpp