[master] RFR: Merge jdk:jdk-25+1 [v2]

[Roman Kennke]

> Merge upstream tag jdk-25+1, results in clean slate upstream state.

Roman Kennke has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 194 commits:

 - Merge branch 'master' into merge-jdk-27+1
 - Merge
   
   Reviewed-by: stuefe
 - Add some inlining and avoid CAS for quick_enter for lightweight locking.
   
   Reviewed-by: aboldtch
 - Tiny Class-Pointers
 - 8305895: Implementation: JEP 450: Compact Object Headers (Experimental)
 - 8305896: Alternative full GC forwarding
 - 8305898: Alternative self-forwarding mechanism
 - 8315884: New Object to ObjectMonitor mapping
 - Lilliput conf changes for jcheck
 - Merge branch 'lilliput_v6' into lilliput_rebase_target
 - ... and 184 more: https://git.openjdk.org/lilliput/compare/bedb68ab...fa8f3f57

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Changes: https://git.openjdk.org/lilliput/pull/190/files
  Webrev: https://webrevs.openjdk.org/?repo=lilliput&pr=190&range=01
  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/lilliput/pull/190.diff
  Fetch: git fetch https://git.openjdk.org/lilliput.git pull/190/head:pull/190

PR: https://git.openjdk.org/lilliput/pull/190