hg: shenandoah/jdk: Backout: Only put regions with objects into traversal set

[roman at kennke.org]

Changeset: de16edd34c6d
Author:    rkennke
Date:      2018-06-15 16:19 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk/rev/de16edd34c6d

Backout: Only put regions with objects into traversal set

! src/hotspot/share/gc/shenandoah/heuristics/shenandoahTraversalHeuristics.cpp