[lworld+fp16] Integrated: [lworld+fp16] Merge lworld

[Jatin Bhateja]

Merge latest lworld into lworld+fp16.

Thanks,
Jatin

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

Commit messages:
 - Merge lworld

Changes: https://git.openjdk.org/valhalla/pull/939/files
 Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=939&range=00
  Stats: 82889 lines in 2183 files changed: 43612 ins; 26226 del; 13051 mod
  Patch: https://git.openjdk.org/valhalla/pull/939.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/939/head:pull/939

PR: https://git.openjdk.org/valhalla/pull/939