[lworld] RFR: Merge jdk

[David Simms]

Merge jdk-22+21

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Commit messages:
 - Use AccessFlags.SUPER / AccessFlags.IDENTITY depending on Valhalla enabled
 - Merge tag 'jdk-22+21' into lworld_merge_jdk_22_21
 - 8317510: Change Windows debug symbol files naming to avoid losing info when an executable and a library share the same name
 - 8318613: ChoiceFormat patterns are not well tested
 - 8318186: ChoiceFormat inconsistency between applyPattern() and setChoices()
 - 8318487: Specification of the ListFormat.equals() method can be improved
 - 8317360: Missing null checks in JfrCheckpointManager and JfrStringPool initialization routines
 - 8318735: RISC-V: Enable related hotspot tests run on riscv
 - 8318727: Enable parallelism in vmTestbase/vm/gc/concurrent tests
 - 8318607: Enable parallelism in vmTestbase/nsk/stress/jni tests
 - ... and 116 more: https://git.openjdk.org/valhalla/compare/16fa7709...78d07697

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - lworld: https://webrevs.openjdk.org/?repo=valhalla&pr=984&range=00.0
 - jdk: https://webrevs.openjdk.org/?repo=valhalla&pr=984&range=00.1

Changes: https://git.openjdk.org/valhalla/pull/984/files
  Stats: 13971 lines in 451 files changed: 8742 ins; 3026 del; 2203 mod
  Patch: https://git.openjdk.org/valhalla/pull/984.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/984/head:pull/984

PR: https://git.openjdk.org/valhalla/pull/984