hg: jdk/sandbox: 2 new changesets

[chris.hegarty at oracle.com]

Changeset: 3a8634555a01
Author:    zgu
Date:      2020-05-29 13:40 -0400
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/3a8634555a01

8245880: Shenandoah: check class unloading flag early in concurrent code root scan
Reviewed-by: shade

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

Changeset: 522e90688db6
Author:    zgu
Date:      2020-05-29 13:44 -0400
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/522e90688db6

8246162: Shenandoah: full GC does not mark code roots when class unloading is off
Reviewed-by: shade

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