RFR: 8350457: Implement JEP 519: Compact Object Headers [v4]

[Roman Kennke]

> As title says.

Roman Kennke has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains four additional commits since the last revision:

 - Merge branch 'master' into JDK-8350457
 - Build COH CDS archives
 - Remove +UnlockExperimentalOptions from tests
 - 8350457: Support Compact Object Headers as product option

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/24522/files
  - new: https://git.openjdk.org/jdk/pull/24522/files/ad389db3..0e3835a7

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24522&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24522&range=02-03

  Stats: 349949 lines in 4000 files changed: 113733 ins; 216951 del; 19265 mod
  Patch: https://git.openjdk.org/jdk/pull/24522.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24522/head:pull/24522

PR: https://git.openjdk.org/jdk/pull/24522