[lworld] RFR: 8351550: [lworld] Some bootstrap methods/lambda factories fail with -XX:+UseNullableValueFlattening [v2]

[Frederic Parain]

> Fix handling of offsets for boxing classes.
> Thanks to Chen Liang and John Rose for their help identifying the root cause of the problem.
> 
> Fred

Frederic Parain 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 remote-tracking branch 'upstream/lworld' into 8351550
 - Fix handling of offsets for boxing classes

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Changes:
  - all: https://git.openjdk.org/valhalla/pull/1396/files
  - new: https://git.openjdk.org/valhalla/pull/1396/files/6e1e9b04..739c6f8a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=valhalla&pr=1396&range=01
 - incr: https://webrevs.openjdk.org/?repo=valhalla&pr=1396&range=00-01

  Stats: 24908 lines in 821 files changed: 11029 ins; 9883 del; 3996 mod
  Patch: https://git.openjdk.org/valhalla/pull/1396.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1396/head:pull/1396

PR: https://git.openjdk.org/valhalla/pull/1396