Since PHPUnit 6.2, exceptions are namespaced. The tests are adjusted to
catch these exceptions properly again.

Resolves: #81705
Related: #81696
Releases: master, 8.7
Change-Id: I786248b9ca3f4fcef37ab9dd4fd29d696eef438b
Reviewed-on: https://review.typo3.org/53333


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>