hg: jdk10/hs: 8173917: Safepoint ID is not consistent across event-based tracing events

[erik.gahlin at oracle.com]

Changeset: 494e1490b341
Author:    egahlin
Date:      2017-10-16 16:44 +0200
URL:       http://hg.openjdk.java.net/jdk10/hs/rev/494e1490b341

8173917: Safepoint ID is not consistent across event-based tracing events
Reviewed-by: egahlin, mgronlun
Contributed-by: robin.westberg at oracle.com

! src/hotspot/share/runtime/safepoint.cpp