[lworld] RFR: 8373987: [lworld] exploded-image/test broken since disable patching (JDK-8373806) [v2]

[David Beaumont]

> Preview mode support for exploded build.
> 
> This is an alternate approach from https://github.com/openjdk/valhalla/pull/1845 which I think is actually cleaner and more robust.

David Beaumont has updated the pull request incrementally with one additional commit since the last revision:

  flip guard for consistency

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

Changes:
  - all: https://git.openjdk.org/valhalla/pull/1854/files
  - new: https://git.openjdk.org/valhalla/pull/1854/files/153604cc..8a0ce1a7

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=valhalla&pr=1854&range=01
 - incr: https://webrevs.openjdk.org/?repo=valhalla&pr=1854&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/valhalla/pull/1854.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1854/head:pull/1854

PR: https://git.openjdk.org/valhalla/pull/1854