Joshua Gargus uploaded a new version of Compiler to project The Trunk:
http://source.squeak.org/trunk/Compiler-jcg.85.mcz

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

Name: Compiler-jcg.85
Author: jcg
Time: 30 September 2009, 1:14:16 am
UUID: 21a5f88d-4107-48c3-b41c-d5ea735319a7
Ancestors: Compiler-tfel.84

Revert to lazy-initialization of method properties, which is used by the externally-maintained Prolog package (which loads cleanly into 3.10.2, but not trunk).

Part 1 of 2... need to first re-add the #properties method to Parser before changing methods to send it.

=============== Diff against Compiler-tfel.84 ===============

Item was added:
+ ----- Method: Parser>>properties (in category 'pragmas') -----
+ properties
+ 	^ properties ifNil: [ properties := AdditionalMethodState new ]!