hg: shenandoah/jdk9/hotspot: Adaptive should not be scared of user-requested System.gc()

[ashipile at redhat.com]

Changeset: 8d83c6e30c74
Author:    shade
Date:      2017-05-17 17:56 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk9/hotspot/rev/8d83c6e30c74

Adaptive should not be scared of user-requested System.gc()

! src/share/vm/gc/shenandoah/shenandoahCollectorPolicy.cpp
! src/share/vm/gc/shenandoah/shenandoahCollectorPolicy.hpp
! src/share/vm/gc/shenandoah/shenandoahMarkCompact.cpp