[jdk21u-dev] RFR: 8280818: Expand bug8033699.java to iterate over all LaFs

[Goetz Lindenmaier]

I backport this for parity with 21.0.9-oracle.

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Commit messages:
 - Backport b50fe9b8cc39730d3339e45a83b365ab3dd8a5da

Changes: https://git.openjdk.org/jdk21u-dev/pull/1953/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1953&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8280818
  Stats: 110 lines in 1 file changed: 56 ins; 40 del; 14 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1953.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1953/head:pull/1953

PR: https://git.openjdk.org/jdk21u-dev/pull/1953