[lworld] RFR: 8335439: [lworld] ValueFieldInheritanceTest.java fails with -XX:-UseCompressedClassPointers

[Frederic Parain]

Fix an assert invalid when class pointers are not compressed, extend testing to cover this case systematically.

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Commit messages:
 - Fix assert for uncompressed class pointer cases

Changes: https://git.openjdk.org/valhalla/pull/1159/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1159&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8335439
  Stats: 48 lines in 3 files changed: 43 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/valhalla/pull/1159.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1159/head:pull/1159

PR: https://git.openjdk.org/valhalla/pull/1159