[lworld] RFR: Merge jdk

[David Simms]

Merge jdk-24+21

-------------

Commit messages:
 - Merge jdk
 - 8342681: TestLoadBypassesNullCheck.java fails improperly specified VM option
 - 8342609: jpackage test helper function incorrectly removes a directory instead of its contents only
 - 8342715: x86 unused orw instruction encoding could be removed
 - 8342011: Conditionally compile ReservedHeapSpace compressed heap support
 - 8338570: sun/font/HBShaper - mismatch in return type of FFM upcall function description and native invocation
 - 8340477: Remove JDK1.1 compatible behavior for "EST", "MST", and "HST" time zones
 - 8342698: Fix order of @param tags in module java.base
 - 8335271: Specify the MessageFormat ArgumentIndex Implementation Limit
 - 8339507: Test generation tool and gtest for testing APX encoding of extended gpr instructions
 - ... and 53 more: https://git.openjdk.org/valhalla/compare/0d54f19c...187e9467

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - lworld: https://webrevs.openjdk.org/?repo=valhalla&pr=1304&range=00.0
 - jdk: https://webrevs.openjdk.org/?repo=valhalla&pr=1304&range=00.1

Changes: https://git.openjdk.org/valhalla/pull/1304/files
  Stats: 94695 lines in 422 files changed: 92101 ins; 1980 del; 614 mod
  Patch: https://git.openjdk.org/valhalla/pull/1304.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1304/head:pull/1304

PR: https://git.openjdk.org/valhalla/pull/1304