[lworld] RFR: 8274792: [lworld] Final fields should be flattened

[Frederic Parain]

Small fix triggering flattening of non-static fields.

Fred

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Commit messages:
 - Flatten final fields

Changes: https://git.openjdk.java.net/valhalla/pull/558/files
 Webrev: https://webrevs.openjdk.java.net/?repo=valhalla&pr=558&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8274792
  Stats: 3 lines in 1 file changed: 0 ins; 1 del; 2 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/558.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/558/head:pull/558

PR: https://git.openjdk.java.net/valhalla/pull/558