[jdk21u-dev] RFR: 8316959: Improve InlineCacheBuffer pending queue management [v2]

[Goetz Lindenmaier]

> I backport this for parity with 21.0.4-oracle.

Goetz Lindenmaier 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 two additional commits since the last revision:

 - Merge branch 'openjdk:master' into backport-GoeLin-c9985720
 - Backport c9985720b91cf6ad2938e9be12da08c5193f83af

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

Changes:
  - all: https://git.openjdk.org/jdk21u-dev/pull/453/files
  - new: https://git.openjdk.org/jdk21u-dev/pull/453/files/29fd1a71..3c869d82

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=453&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=453&range=00-01

  Stats: 366 lines in 49 files changed: 61 ins; 97 del; 208 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/453.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/453/head:pull/453

PR: https://git.openjdk.org/jdk21u-dev/pull/453