RFR: 8295419: JFR: Change name of jdk.JitRestart [v3]

[Erik Gahlin]

> Could I have a review of a change to the JFR event metadata. 
> 
> The convention used by JFR events have been to use uppercase for acronyms, for example CPULoad, TLSHandshake, SystemGC, JVMInformation and ObjectAllocationInNewTLAB. The jdk.JitRestart event should follow the same convention to be consistent (jdk.JITRestart). The event has not been in a release so there is no harm in changing.
> 
> Testing: test/jdk/jdk/jfr
> 
> Thanks
> Erik

Erik Gahlin has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains three commits:

 - Merge branch 'master' into jitevent
 - Merge
 - Initial

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Changes: https://git.openjdk.org/jdk/pull/10731/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10731&range=02
  Stats: 7 lines in 6 files changed: 0 ins; 0 del; 7 mod
  Patch: https://git.openjdk.org/jdk/pull/10731.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10731/head:pull/10731

PR: https://git.openjdk.org/jdk/pull/10731