`GeneratorClassesResolver` used for the extension scanner preprocesses
`GeneralUtility::makeInstance` calls, transforms class-string values to
their corresponding class-constants and provides a low-level class
instantiation using `new`.

When modifying PHP parser nodes, only expected types shall be used,
which is `ClassConstFetch` instead of `FullyQualified`.

Resolves: #94283
Releases: master
Change-Id: I3a802212dc067c5ced0e03aa2cce6519d5ed1dbd
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/69403


Tested-by: core-ci <typo3@b13.com>
Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>