[lworld] RFR: 8351441: [lworld] ClassFile API support generating stack maps for strict field assignment [v6]

[Chen Liang]

> Works for a basic case, running tests, need more tests to ensure other features added in this patch

Chen Liang 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 10 additional commits since the last revision:

 - Merge branch 'lworld' of https://github.com/openjdk/valhalla into feature/cf-strict
 - Fix flow merge checks
 - wip loop work
 - Move test to classfile
 - Should check array mismatch instead of just frames (can have backward jumps)
 - Years
 - Add a cache for strict field check
 - Fix field transformation that add strict flag
 - Further optimize impl, complete tests
 - 8351441: [lworld] ClassFile API support generating stack maps for strict field assignment

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

Changes:
  - all: https://git.openjdk.org/valhalla/pull/1392/files
  - new: https://git.openjdk.org/valhalla/pull/1392/files/beb03349..d65b0b2f

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=valhalla&pr=1392&range=05
 - incr: https://webrevs.openjdk.org/?repo=valhalla&pr=1392&range=04-05

  Stats: 24555 lines in 818 files changed: 10659 ins; 9919 del; 3977 mod
  Patch: https://git.openjdk.org/valhalla/pull/1392.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1392/head:pull/1392

PR: https://git.openjdk.org/valhalla/pull/1392