obartsch authored Oct 20, 2020 and Georg Ringer committed Oct 20, 2020

Since over a decade (according to the timestamp),
GeneralUtility::uniqueList() does not allow an array as
first argument and furthermore doesn't use the second
parameter anymore. Since then, both have thrown an
`InvalidArgumentException`. Furthermore, this method
does not belong to GeneralUtility at all.

Therefore this method is now deprecated and a new one,
using proper type hints, a return type, no second argument
and a correct PHPDoc is added to StringUtility.

All usages in the core are replaced with the new method,
ensuring proper types.

Resolves: #92607
Releases: master
Change-Id: Ibca5c2c312258dfc63c74f0ff11408d11226f7b6
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/66190


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Daniel Goerz <daniel.goerz@posteo.de>
Tested-by: Alexander Schnitzler <git@alexanderschnitzler.de>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Daniel Goerz <daniel.goerz@posteo.de>
Reviewed-by: Alexander Schnitzler <git@alexanderschnitzler.de>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>