[TASK] Add unit test for short data type support in ReflectionService

Resolves: #62547
Releases: master
Change-Id: Idada794755d8e40f702d0d9ada5a8b8b5719bf4c
Reviewed-on: http://review.typo3.org/33616
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Markus Klein <klein.t3@reelworx.at>
Tested-by: Markus Klein <klein.t3@reelworx.at>