Eliot Miranda uploaded a new version of Collections to project Spur:
http://source.squeak.org/spur/Collections-nice.570.mcz

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

Name: Collections-nice.570
Author: eem
Time: 31 May 2014, 7:39:45.248 am
UUID: e2cd1155-d1bd-4652-ade7-c4af155cdb10
Ancestors: Collections-nice.570

Collections-nice.570 patched for Spur by SpurBootstrapMonticelloPackagePatcher * Cog-tpr.154

Let's optimize a bit LinkedList>>at:ifAbsent: by scanning the list only once, unlike super.

=============== Diff against Collections-nice.570 ===============