[11u] [JFR] RFR 8209850: Allow NamedThreads to use GlobalCounter critical sections

[Jaroslav Bachorík]

 Hi all,

please, review this backport which is a prerequisite for the planned
backport of JDK-8225797

JIRA .   : https://bugs.openjdk.java.net/browse/JDK-8209850
Webrev : http://cr.openjdk.java.net/~jbachorik/8209850/webrev.00/

The patch applies with fuzz and the patch diff is listed at
http://cr.openjdk.java.net/~jbachorik/8209850/webrev.00/patch.diff

Thanks,

-JB-