git: openjdk/jdk21u-dev: master: 8326389: [test] improve assertEquals failure output

[Goetz Lindenmaier]

Changeset: e83e1383
Branch: master
Author:    Goetz Lindenmaier <goetz at openjdk.org>
Date:      2025-05-16 08:05:43 +0000
URL:       https://git.openjdk.org/jdk21u-dev/commit/e83e1383f7ff054173bb51a92e74de28d93f5f85

8326389: [test] improve assertEquals failure output

Backport-of: 9b1f1e5294e130ec444b08af1f73d08e86fd91ee

! test/lib/jdk/test/lib/Asserts.java