[lworld] Integrated: Merge jdk

[David Simms]

Merge jdk-26+4

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Commit messages:
 - Adjust Testing
 - 8358821 for Valhalla
 - Header includes sorted
 - Adjust testing
 - Merge jdk
 - 8360255: runtime/jni/checked/TestLargeUTF8Length.java fails with -XX:-CompactStrings
 - 8358821: patch_verified_entry causes problems, use nmethod entry barriers instead
 - 8225354: serviceability/jvmti/ModuleAwareAgents/ThreadStart failed with Didn't get ThreadStart events in VM early start phase!
 - 8360303: Remove two unused invoke files
 - 8352565: Add native method implementation of Reference.get()
 - ... and 71 more: https://git.openjdk.org/valhalla/compare/ac35fa7f...8931ceb5

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - lworld: https://webrevs.openjdk.org/?repo=valhalla&pr=1579&range=00.0
 - jdk: https://webrevs.openjdk.org/?repo=valhalla&pr=1579&range=00.1

Changes: https://git.openjdk.org/valhalla/pull/1579/files
  Stats: 6630 lines in 363 files changed: 3444 ins; 1492 del; 1694 mod
  Patch: https://git.openjdk.org/valhalla/pull/1579.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1579/head:pull/1579

PR: https://git.openjdk.org/valhalla/pull/1579