RFR: Merge jdk19

[Jesper Wilhelmsson]

Forwardport JDK 19 -> JDK 20

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Commit messages:
 - Merge remote-tracking branch 'jdk19/master' into Merge_jdk19
 - 8289954: C2: Assert failed in PhaseCFG::verify() after JDK-8183390
 - 8289127: Apache Lucene triggers: DEBUG MESSAGE: duplicated predicate failed which is impossible

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.org/?repo=jdk&pr=9544&range=00.0
 - jdk19: https://webrevs.openjdk.org/?repo=jdk&pr=9544&range=00.1

Changes: https://git.openjdk.org/jdk/pull/9544/files
  Stats: 175 lines in 4 files changed: 171 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/9544.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9544/head:pull/9544

PR: https://git.openjdk.org/jdk/pull/9544