RFR: Merge lworld [v2]

[Vicente Romero]

> Merge branch 'lworld' into lw5_merge_lworld

Vicente Romero has updated the pull request incrementally with one additional commit since the last revision:

  fixing failing tests

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

Changes:
  - all: https://git.openjdk.org/valhalla/pull/917/files
  - new: https://git.openjdk.org/valhalla/pull/917/files/96edb016..66f273e4

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=valhalla&pr=917&range=01
 - incr: https://webrevs.openjdk.org/?repo=valhalla&pr=917&range=00-01

  Stats: 21 lines in 6 files changed: 0 ins; 4 del; 17 mod
  Patch: https://git.openjdk.org/valhalla/pull/917.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/917/head:pull/917

PR: https://git.openjdk.org/valhalla/pull/917