RFR: Merge jdk18

[Jesper Wilhelmsson]

Forwardport JDK 18 -> JDK 19

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Commit messages:
 - Merge remote-tracking branch 'jdk18/master' into Merge_jdk18
 - 8279998: PPC64 debug builds fail with "untested: RangeCheckStub: predicate_failed_trap_id"
 - 8280034: ProblemList jdk/jfr/api/consumer/recordingstream/TestOnEvent.java on linux-x64
 - 8279924: [PPC64, s390] implement frame::is_interpreted_frame_valid checks
 - 8279702: [macosx] ignore xcodebuild warnings on M1
 - 8279930: Synthetic cast causes generation of store barriers when using heap segments
 - 8279597: [TESTBUG] ReturnBlobToWrongHeapTest.java fails with -XX:TieredStopAtLevel=1 on machines with many cores
 - 8278434: timeouts in test  java/time/test/java/time/format/TestZoneTextPrinterParser.java

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.java.net/?repo=jdk&pr=7119&range=00.0
 - jdk18: https://webrevs.openjdk.java.net/?repo=jdk&pr=7119&range=00.1

Changes: https://git.openjdk.java.net/jdk/pull/7119/files
  Stats: 403 lines in 9 files changed: 361 ins; 4 del; 38 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7119.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7119/head:pull/7119

PR: https://git.openjdk.java.net/jdk/pull/7119