[jdk24] RFR: 8345337: JFR: jfr view should display all direct subfields for an event type

[Erik Gahlin]

8345337: JFR: jfr view should display all direct subfields for an event type

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Commit messages:
 - Backport 672c413c61d9b155020a0fd4bd1c2bc0661a60fb

Changes: https://git.openjdk.org/jdk/pull/23009/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23009&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8345337
  Stats: 4 lines in 1 file changed: 1 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/23009.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23009/head:pull/23009

PR: https://git.openjdk.org/jdk/pull/23009