Integrated: 8323023: GenShen: Region logging test fails intermittently

[William Kemper]

8323023: GenShen: Region logging test fails intermittently

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Commit messages:
 - Backport bd42a0ea1a7349fb810dc4807444900f1df5c05f

Changes: https://git.openjdk.org/shenandoah-jdk21u/pull/10/files
 Webrev: https://webrevs.openjdk.org/?repo=shenandoah-jdk21u&pr=10&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8323023
  Stats: 123 lines in 2 files changed: 49 ins; 74 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk21u/pull/10.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk21u.git pull/10/head:pull/10

PR: https://git.openjdk.org/shenandoah-jdk21u/pull/10