Integrated: 8323790: [lworld] TestSuperclass.java failed after merging jdk-22+16, due to flag bugs

[Vicente Romero]

the merge uncovered bugs related to the handling of the IDENTITY flag

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Commit messages:
 - 8323790: [lworld] TestSuperclass.java failed after merging jdk-22+16, due to flag bugs

Changes: https://git.openjdk.org/valhalla/pull/1010/files
 Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1010&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8323790
  Stats: 11 lines in 7 files changed: 4 ins; 2 del; 5 mod
  Patch: https://git.openjdk.org/valhalla/pull/1010.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1010/head:pull/1010

PR: https://git.openjdk.org/valhalla/pull/1010