Comment #7 on issue 3375 by rydier: PositionableStream remove dependence to Compiler
http://code.google.com/p/pharo/issues/detail?id=3375
@5: "fileInSilentlyAnnouncing: doesn't invoke methods from *System-Changes." What are you talking about? It uses both nextChunk, checkForPreamble:, and skipStyleChunk
