hg: jdk/sandbox: 8224495: Shenandoah: Do not rescan code roots in final mark pause if it is not degenerated GC

[chris.hegarty at oracle.com]

Changeset: a5f5e680ea32
Author:    zgu
Date:      2019-05-21 13:06 -0400
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/a5f5e680ea32

8224495: Shenandoah: Do not rescan code roots in final mark pause if it is not degenerated GC
Reviewed-by: shade

! src/hotspot/share/gc/shenandoah/shenandoahConcurrentMark.cpp