[lilliput-jdk17u:lilliput] RFR: 8319135: [Lilliput] Fix objArrayOop gtest

[Roman Kennke]

Hi all,

This pull request contains a backport of commit [fc9020fb](https://github.com/openjdk/lilliput/commit/fc9020fbf193b1c6d2b2fb5d80192c3082dbcf2e) from the [openjdk/lilliput](https://git.openjdk.org/lilliput) repository.

The commit being backported was authored by Roman Kennke on 1 Nov 2023 and was reviewed by Aleksey Shipilev.

The test does not yet exist in lilliput-jdk17u. It has originally been introduced in the [openjdk/lilliput](https://git.openjdk.org/lilliput) repository, I am adding it here in full.

Thanks!

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Commit messages:
 - Backport fc9020fbf193b1c6d2b2fb5d80192c3082dbcf2e

Changes: https://git.openjdk.org/lilliput-jdk17u/pull/61/files
 Webrev: https://webrevs.openjdk.org/?repo=lilliput-jdk17u&pr=61&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8319135
  Stats: 69 lines in 1 file changed: 69 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/lilliput-jdk17u/pull/61.diff
  Fetch: git fetch https://git.openjdk.org/lilliput-jdk17u.git pull/61/head:pull/61

PR: https://git.openjdk.org/lilliput-jdk17u/pull/61