[lilliput-jdk17u:lilliput] RFR: 8308107: [Lilliput/JDK17] Cherry-pick: 8291555: Implement alternative fast-locking scheme [v4]

[Roman Kennke]

> This brings "8291555: Implement alternative fast-locking scheme" into lilliput/jdk17. Lots of small improvements, most importantly the fixed-size lock-stack, plus tons of testing and reviews that went into the upstream change that went into JDK21.
> 
> Testing:
>  - [x] tier1 (x86, x86_64, aarch64)
>  - [x] tier2 (x86, x86_64, aarch64)

Roman Kennke has updated the pull request incrementally with one additional commit since the last revision:

  Address @shipilev comments

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

Changes:
  - all: https://git.openjdk.org/lilliput-jdk17u/pull/19/files
  - new: https://git.openjdk.org/lilliput-jdk17u/pull/19/files/1ff93cdb..5edf8e70

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=lilliput-jdk17u&pr=19&range=03
 - incr: https://webrevs.openjdk.org/?repo=lilliput-jdk17u&pr=19&range=02-03

  Stats: 6 lines in 2 files changed: 3 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/lilliput-jdk17u/pull/19.diff
  Fetch: git fetch https://git.openjdk.org/lilliput-jdk17u.git pull/19/head:pull/19

PR: https://git.openjdk.org/lilliput-jdk17u/pull/19