git: openjdk/loom: fibers: JFR: event type categorization

[duke]

Changeset: 0eb6cc82
Author:    mgronlun <markus.gronlund at oracle.com>
Date:      2022-04-28 20:49:36 +0000
URL:       https://git.openjdk.java.net/loom/commit/0eb6cc8261430ab47b1e43945a1bb8842257073c

JFR: event type categorization

! src/hotspot/share/jfr/metadata/metadata.xml
! src/jdk.jfr/share/classes/jdk/jfr/events/VirtualThreadEndEvent.java
! src/jdk.jfr/share/classes/jdk/jfr/events/VirtualThreadPinnedEvent.java
! src/jdk.jfr/share/classes/jdk/jfr/events/VirtualThreadStartEvent.java
! src/jdk.jfr/share/classes/jdk/jfr/events/VirtualThreadSubmitFailedEvent.java