[TYPO3-core] t3lib_BEfunc::getProcessedValue hook fixes

[Martin Kutschker]

Dmitry Dulepov schrieb:
> Hi!
> 
> Martin Kutschker wrote:
> 
>> But as Bernhard said, the hook is completely broken.
> 
> 
> Than make another one and write in the code that existing is deprecated 
> due to... and so on! Or make a warning using triger_error() and devlog 
> each time when this hook is used.

Oh well, I'm getting tired of those hooks....