[master] RFR: Merge jdk:jdk-23+12

[Roman Kennke]

Let's merge jdk-23+12, in particular, this brings in: [8139457: Relax alignment of array elements](https://bugs.openjdk.org/browse/JDK-8139457). After this merge, I'll check the remaining diff vs upstream and see if I find any leftovers.

Testing:
 - [x] tier1 (-UCOH)
 - [x] tier1 (+UCOH)

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

Commit messages:
 - Merge tag 'jdk-23+12' into merge-jdk-23+12
 - 8324799: Use correct extension for C++ test headers
 - 8318302: ThreadCountLimit.java failed with "Native memory allocation (mprotect) failed to protect 16384 bytes for memory to guard stack pages"
 - 8326953: Race in creation of win-exports.def with static-libs
 - 8326694: Defer setting of autocapitalize attribute
 - 8326687: Inconsistent use of "ZIP", "Zip" and "zip" in java.util.zip/jar zipfs javadoc
 - 8324969: C2: prevent elimination of unbalanced coarsened locking regions
 - 8326763: Consolidate print methods in ContiguousSpace
 - 8325762: Use PassFailJFrame.Builder.splitUI() in PrintLatinCJKTest.java
 - 8326892: Remove unused PSAdaptiveSizePolicyResizeVirtualSpaceAlot develop flag
 - ... and 71 more: https://git.openjdk.org/lilliput/compare/763dcced...00694eb1

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.org/?repo=lilliput&pr=142&range=00.0
 - jdk:jdk-23+12: https://webrevs.openjdk.org/?repo=lilliput&pr=142&range=00.1

Changes: https://git.openjdk.org/lilliput/pull/142/files
  Stats: 12692 lines in 1121 files changed: 6866 ins; 2387 del; 3439 mod
  Patch: https://git.openjdk.org/lilliput/pull/142.diff
  Fetch: git fetch https://git.openjdk.org/lilliput.git pull/142/head:pull/142

PR: https://git.openjdk.org/lilliput/pull/142