[lworld] RFR: 8372113: [lworld] Fix various issues with TypeAryPtr and TypeAryKlassPtr [v12]

[Quan Anh Mai]

> Hi,
> 
> This PR fixes various issues with `TypeAryPtr` and `TypeAryKlassPtr`. It starts with me trying to tighten the properties (`flat`, `null_free`, etc) of these classes, then fixing all the revealed issues until there are no crashes or wrong results left.
> 
> Please take a look and leave your reviews, thanks a lot.

Quan Anh Mai has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 16 commits:

 - Merge branch 'lworld' into AryKlassPtrfactory
 - Fix because properties passed into with_properties is not the same as properties() of the result
 - ArrayProperties needs to agree with LayoutKind
 - Merge branch 'lworld' into AryKlassPtrfactory
 - Merge branch 'lworld' into AryKlassPtrfactory
 - reviews
 - reviews
 - Should not clone MergeMem
 - fix NarrowMemProj
 - Merge branch 'lworld' into AryKlassPtrfactory
 - ... and 6 more: https://git.openjdk.org/valhalla/compare/3c41c2aa...0b78ccaf

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Changes: https://git.openjdk.org/valhalla/pull/1755/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1755&range=11
  Stats: 612 lines in 23 files changed: 264 ins; 156 del; 192 mod
  Patch: https://git.openjdk.org/valhalla/pull/1755.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1755/head:pull/1755

PR: https://git.openjdk.org/valhalla/pull/1755