hg: shenandoah/jdk: Handle metadata induced GC

[zgu at redhat.com]

Changeset: 5e7b774f99a0
Author:    zgu
Date:      2018-10-29 09:58 -0400
URL:       http://hg.openjdk.java.net/shenandoah/jdk/rev/5e7b774f99a0

Handle metadata induced GC

! src/hotspot/share/gc/shenandoah/heuristics/shenandoahAggressiveHeuristics.cpp
! src/hotspot/share/gc/shenandoah/heuristics/shenandoahPassiveHeuristics.cpp
! src/hotspot/share/gc/shenandoah/shenandoahControlThread.cpp
! src/hotspot/share/gc/shenandoah/shenandoahControlThread.hpp
! src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp
! src/hotspot/share/gc/shenandoah/shenandoahHeap.hpp
! src/hotspot/share/gc/shenandoah/shenandoahHeuristics.cpp
! src/hotspot/share/gc/shenandoah/shenandoahHeuristics.hpp
! src/hotspot/share/memory/metaspace.hpp