[Lazarus] Trunk cannot compile. Missing unit 'PropEdits'

[dmitry boyarintsev]

> I just got an svn update for Lazarus to r18979.  I did a make clean
> and build and it fails with the missing unit 'PropEdits' in the
> SynPropertyEditObjectList unit.
you nead to clean all.
infact, i've had to delete the whole units (compiler units) directory.

Thanks,
Dmitry