RFR: 8211238: @Deprecated JFR event

[Markus Grönlund]

Greetings,

please help review this enhancement to add a JFR event to report runtime invocations of methods that have been declared deprecated in the JDK.

Testing: jdk_jfr, CI 1-6, stress testing

Thanks
Markus

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Commit messages:
 - Merge branch 'openjdk:master' into 8211238
 - whitespace
 - emergency dump support
 - whitespace
 - remove assert
 - 8211238

Changes: https://git.openjdk.org/jdk/pull/16931/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=16931&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8211238
  Stats: 2391 lines in 65 files changed: 2043 ins; 251 del; 97 mod
  Patch: https://git.openjdk.org/jdk/pull/16931.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16931/head:pull/16931

PR: https://git.openjdk.org/jdk/pull/16931