[lworld] RFR: 8341180: [lworld] Some classfile tests failing on LoadableDescriptorsAttribute after merge jdk-23+26 and jdk-23+27

[Vicente Romero]

class `jdk.internal.classfile.impl.verifier.ParserVerifier` is failing with an assertion error as it doesn't know about `LoadableDescriptorsAttribute` which is specific to valhalla

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Commit messages:
 - adding copyright year
 - 8341180: [lworld] Some classfile tests failing on LoadableDescriptorsAttribute after merge jdk-23+26 and jdk-23+27

Changes: https://git.openjdk.org/valhalla/pull/1266/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1266&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8341180
  Stats: 3 lines in 1 file changed: 2 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/valhalla/pull/1266.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1266/head:pull/1266

PR: https://git.openjdk.org/valhalla/pull/1266