[Pharo-users] Simplifying a File reference

I have a file reference containing multiple occurrences of .., like this File @ /Users/black/graceProgs/lists/../../Development/mg/gracelang/albums_junk.grace How do I simplify this to show the simpler path without the .. ? There should be a method on FileReference, no? Something like #normalize ? Or maybe FileReference should do this automatically when it is created? Andrew