hg: jdk/sandbox: 8226897: Provide object age with JFR OldObjectSample event

[chris.hegarty at oracle.com]

Changeset: 9fe5d0d4e9c5
Author:    egahlin
Date:      2019-11-24 01:03 +0100
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/9fe5d0d4e9c5

8226897: Provide object age with JFR OldObjectSample event
Reviewed-by: mgronlun, mseledtsov

! src/hotspot/share/jfr/leakprofiler/checkpoint/eventEmitter.cpp
! src/hotspot/share/jfr/metadata/metadata.xml
! src/hotspot/share/utilities/ticks.hpp
+ test/jdk/jdk/jfr/event/oldobject/TestObjectAge.java