RFR: 8367948: JFR: MethodTrace threshold setting has no effect

[Erik Gahlin]

Could I have a review of the PR that ensures thresholds work with the MethodTrace event?

Testing: jdk/jdk/jfr 

Thanks
Erik

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Commit messages:
 - Initial

Changes: https://git.openjdk.org/jdk/pull/27396/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27396&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8367948
  Stats: 34 lines in 3 files changed: 29 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/jdk/pull/27396.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27396/head:pull/27396

PR: https://git.openjdk.org/jdk/pull/27396