[lworld] Integrated: 8338263: [lworld] Make more tests require flagless until JDK-8338261 is fixed

[Tobias Hartmann]

Another workaround for [JDK-8338261 [lworld] FieldLayoutAnalyzer::checkSubClasses fails with NullPointerException: Cannot read field](https://bugs.openjdk.org/browse/JDK-8338261).

Best regards,
Tobias

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Commit messages:
 - 8338263: [lworld] Make more tests require flagless until JDK-8338261 is fixed

Changes: https://git.openjdk.org/valhalla/pull/1203/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1203&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8338263
  Stats: 4 lines in 1 file changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/valhalla/pull/1203.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1203/head:pull/1203

PR: https://git.openjdk.org/valhalla/pull/1203