hg: shenandoah/jdk8u/hotspot: Don't count waste in free-set as used.

[roman at kennke.org]

Changeset: 2f9595d13e58
Author:    rkennke
Date:      2015-10-29 18:17 +0100
URL:       http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/2f9595d13e58

Don't count waste in free-set as used.

! src/share/vm/gc_implementation/shenandoah/shenandoahHeap.cpp