hg: jdk/jdk: 8240917: Shenandoah: Avoid scanning thread code roots twice in all root scanner

[zgu at redhat.com]

Changeset: 67a2ce1f3a0a
Author:    zgu
Date:      2020-03-12 13:08 -0400
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/67a2ce1f3a0a

8240917: Shenandoah: Avoid scanning thread code roots twice in all root scanner
Reviewed-by: rkennke

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