[lworld] RFR: 8368497: [lworld] redo: New lint category `initialization` for code that would not be allowed in the prologue [v6]

[Vicente Romero]

> redoing JDK-8367698 as the original fix had to be delta applied due to some test failures

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

  addressing review comments

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

Changes:
  - all: https://git.openjdk.org/valhalla/pull/1650/files
  - new: https://git.openjdk.org/valhalla/pull/1650/files/3c7b8d9b..4878eea3

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=valhalla&pr=1650&range=05
 - incr: https://webrevs.openjdk.org/?repo=valhalla&pr=1650&range=04-05

  Stats: 1632 lines in 59 files changed: 728 ins; 902 del; 2 mod
  Patch: https://git.openjdk.org/valhalla/pull/1650.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1650/head:pull/1650

PR: https://git.openjdk.org/valhalla/pull/1650