hg: jdk/sandbox: 8225572: Shenandoah: Move JNIHandles root out of serial roots

[chris.hegarty at oracle.com]

Changeset: f7cc25dda38a
Author:    zgu
Date:      2019-06-11 19:15 -0400
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/f7cc25dda38a

8225572: Shenandoah: Move JNIHandles root out of serial roots
Reviewed-by: rkennke

! src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.cpp
! src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.hpp
! src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.inline.hpp
! src/hotspot/share/gc/shenandoah/shenandoahRootVerifier.cpp
! src/hotspot/share/gc/shenandoah/shenandoahRootVerifier.hpp