RFR: 8293782: Shenandoah: some tests failed on lock rank check

[Tongbao Zhang]

After [JDK-8290025](https://bugs.openjdk.org/browse/JDK-8290025), some tests using ShenandoahGC failed on the lock rank check between AdapterHandlerLibrary_lock and ShenandoahRequestedGC_lock

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Commit messages:
 - 8293782: Shenandoah: some tests failed on lock rank check

Changes: https://git.openjdk.org/jdk/pull/10264/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10264&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8293782
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/10264.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10264/head:pull/10264

PR: https://git.openjdk.org/jdk/pull/10264