Nicolas Cellier uploaded a new version of System to project The Trunk:
http://source.squeak.org/trunk/System-nice.587.mcz

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

Name: System-nice.587
Author: nice
Time: 4 September 2013, 10:26:50.978 pm
UUID: bdf5e52f-9579-4437-9ff4-640cd87e3b36
Ancestors: System-cmm.586

Avoid 'a literal string' asSymbol.
#'a literal symbol' is the syntax.

=============== Diff against System-cmm.586 ===============

Item was changed:
  ----- Method: PseudoClass>>removedCategoryName (in category 'categories') -----
  removedCategoryName
+ 	^#'*** removed methods ***'!
- 	^'*** removed methods ***' asSymbol!