Eliot Miranda uploaded a new version of Files to project The Trunk:
http://source.squeak.org/trunk/Files-eem.135.mcz

==================== Summary ====================

Name: Files-eem.135
Author: eem
Time: 11 May 2014, 9:54:00.651 am
UUID: 6a73aad1-8897-492c-8e2b-8eb2036eed8c
Ancestors: Files-eem.134

Implement FileDirectory>>includesKey: in terms of
directoryEntryForName: instead of the slooooow
fileAndDirectoryNames.

Not least this finesses the issue of having a case-sensitive
file system on Mac OS (which is an option).

=============== Diff against Files-eem.134 ===============

Item was changed:
  ----- Method: FileDirectory>>includesKey: (in category 'testing') -----
  includesKey: localName
  	"Answer true if this directory includes a file or directory of the given name. Note that the name should be a local file name, in contrast with fileExists:, which takes either local or full-qualified file names."
  	"(FileDirectory on: Smalltalk vmPath) includesKey: 'SqueakV2.sources'"
+ 	^(self directoryEntryForName: localName) notNil!
- 	self isCaseSensitive
- 		ifTrue:[^ self fileAndDirectoryNames includes: localName]
- 		ifFalse:[^ self fileAndDirectoryNames anySatisfy: [:str| str sameAs: localName]].!