RFR: 8276995: Bug in jdk.jfr.event.gc.collection.TestSystemGC [v2]

[Robert Toyonaga]

> Just a tiny test case fix. The test was previously checking the wrong events.

Robert Toyonaga has updated the pull request incrementally with two additional commits since the last revision:

 - Revert "wip"
   
   This reverts commit 20647cd78e904b53536c87c19b4b85e2ed053b9b.
 - wip

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/23445/files
  - new: https://git.openjdk.org/jdk/pull/23445/files/8fa82737..2a7ebdc6

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=23445&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=23445&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/23445.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23445/head:pull/23445

PR: https://git.openjdk.org/jdk/pull/23445