Comment #2 on issue 3375 by rydier: PositionableStream remove dependence to Compiler
http://code.google.com/p/pharo/issues/detail?id=3375
So you're moving fileInSilentlyAnnouncing: to Compiler-Kernel, but keeping fileInSilently in Collections-Streams and give it an "Does compiler exist"-check?
This does not consistently make sense to me...
