TYPO3 Core

There were several issue with the implementation
of class alias handling. Most importantly the
early instance alias cache depended on TYPO3_MODE
which in turn triggered a full class cache
initialization when this cache was missing in one
context.

Additionally eval() calls needed to be used in
certain situations and the building of the cache
files introduced additional complexity.

Solution is to change the cache for early instances
and completely remove and replace by a simple
setAliasFoClassName() call.