[TASK] Convert some FAL unit test to functional

Pick a number of FAL related unit tests that give a
lot of headaches and tend to break often and convert
them to functional tests.

Change-Id: Ic34053af8aec3c5936331de361fda5bef2149fe8
Resolves: #77381
Releases: master
Reviewed-on: https://review.typo3.org/49324


Tested-by: Bamboo TYPO3com <info@typo3.com>
Reviewed-by: Sebastian Bumann <bumann.sebastian@gmail.com>
Tested-by: Sebastian Bumann <bumann.sebastian@gmail.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>