[Pharo-dev] Abotu FileReference objects as autoevaluating ones

about https://pharo.fogbugz.com/f/cases/18956/FileReference-printString-should-be-... 'tmp/foo.txt' asFileReference

File @ tmp/foo.txt and it would be much much better to get back 'tmp/foo.txt' asFileReference So that we can get { 'tmp/foo.txt' asFileReference }

{ 'tmp/foo.txt' asFileReference }

and not "an Array(File @ tmp/foo.txt)" In addition we should turn the current printOn: method into a displayString method so that a list of fileReference can be well display with File @ tmp/foo.txt for example