[jdk21] RFR: 8311822: AIX : test/jdk/java/foreign/TestLayouts.java fails because of different output - expected [[i4](struct)] but found [[I4](struct)]

[Christoph Langer]

Hi all,

This pull request contains a backport of [JDK-8311822](https://bugs.openjdk.org/browse/JDK-8311822), commit [d1cc2782](https://github.com/openjdk/jdk/commit/d1cc2782606e8a3cfead9055aa845e48e851edd4) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.

The commit being backported was authored by Per Minborg on 24 Jul 2023 and was reviewed by Jorn Vernee.


Test fix, so qualifying for jdk21 under RDP2 rules.

Thanks!

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Commit messages:
 - Backport d1cc2782606e8a3cfead9055aa845e48e851edd4

Changes: https://git.openjdk.org/jdk21/pull/157/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21&pr=157&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8311822
  Stats: 7 lines in 1 file changed: 3 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk21/pull/157.diff
  Fetch: git fetch https://git.openjdk.org/jdk21.git pull/157/head:pull/157

PR: https://git.openjdk.org/jdk21/pull/157