[lworld] RFR: 8376843: [lworld] add more regression tests for local variable proxies [v5]

[Vicente Romero]

> adding some additional regression tests for local proxy variables
> 
> TIA

Vicente Romero 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 five additional commits since the last revision:

 - Merge branch 'lworld' into JDK-8376843
 - fixing test annotations
 - making the compiler reusable
 - doc
 - 8376843: [lworld] add more regression tests for local variable proxies

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

Changes:
  - all: https://git.openjdk.org/valhalla/pull/2008/files
  - new: https://git.openjdk.org/valhalla/pull/2008/files/12401ea5..cfc9a537

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=valhalla&pr=2008&range=04
 - incr: https://webrevs.openjdk.org/?repo=valhalla&pr=2008&range=03-04

  Stats: 270 lines in 24 files changed: 150 ins; 35 del; 85 mod
  Patch: https://git.openjdk.org/valhalla/pull/2008.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/2008/head:pull/2008

PR: https://git.openjdk.org/valhalla/pull/2008