RFR: 8318038: ProblemList runtime/CompressedOops/CompressedClassPointers.java on two platforms

[Daniel D. Daugherty]

Trivial ProblemListing for some tests:

[JDK-8318038](https://bugs.openjdk.org/browse/JDK-8318038) ProblemList runtime/CompressedOops/CompressedClassPointers.java on two platforms
[JDK-8318040](https://bugs.openjdk.org/browse/JDK-8318040) ProblemList vmTestbase/nsk/monitoring/ThreadMXBean/findMonitorDeadlockedThreads/find006/TestDescription.java on macosx-aarch64
[JDK-8318042](https://bugs.openjdk.org/browse/JDK-8318042) ProblemList java/nio/channels/vthread/BlockingChannelOps.java#direct-register with GenZGC

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Commit messages:
 - 8318042: ProblemList java/nio/channels/vthread/BlockingChannelOps.java#direct-register with GenZGC
 - 8318040: ProblemList vmTestbase/nsk/monitoring/ThreadMXBean/findMonitorDeadlockedThreads/find006/TestDescription.java on macosx-aarch64
 - 8318038: ProblemList runtime/CompressedOops/CompressedClassPointers.java on two platforms

Changes: https://git.openjdk.org/jdk/pull/16172/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=16172&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8318038
  Stats: 5 lines in 2 files changed: 5 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/16172.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16172/head:pull/16172

PR: https://git.openjdk.org/jdk/pull/16172