[lilliput-jdk17u:lilliput] RFR: 8319135: [Lilliput] Fix objArrayOop gtest [v2]

[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!

Roman Kennke has updated the pull request incrementally with one additional commit since the last revision:

  Remove bad cast

-------------

Changes:
  - all: https://git.openjdk.org/lilliput-jdk17u/pull/61/files
  - new: https://git.openjdk.org/lilliput-jdk17u/pull/61/files/24add19f..3212d20c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=lilliput-jdk17u&pr=61&range=01
 - incr: https://webrevs.openjdk.org/?repo=lilliput-jdk17u&pr=61&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 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