hg: jdk/sandbox: Merge

[markus.gronlund at oracle.com]

Changeset: 4c036608ca8b
Author:    mgronlun
Date:      2019-10-30 11:23 +0100
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/4c036608ca8b

Merge

! src/hotspot/share/jfr/metadata/metadata.xml
! src/hotspot/share/jfr/periodic/jfrPeriodic.cpp
! src/hotspot/share/jfr/recorder/checkpoint/types/jfrType.cpp
! src/hotspot/share/runtime/thread.cpp