A new version of Compiler was added to project The Inbox:
http://source.squeak.org/inbox/Compiler-eem.140.mcz

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

Name: Compiler-eem.140
Author: eem
Time: 20 May 2010, 9:19:38.873 am
UUID: 1811aad2-ae46-40ed-baa6-f572c9d2cd49
Ancestors: Compiler-ar.139

Fix code gen infinite recursion and missing error check for compiling assignments to read-only global variables.

=============== Diff against Compiler-ar.139 ===============

Item was added:
+ ----- Method: LiteralVariableNode>>assignmentCheck:at: (in category 'testing') -----
+ assignmentCheck: encoder at: location
+ 	^(key isVariableBinding and: [key canAssign not])
+ 		ifTrue: [location]
+ 		ifFalse: [-1]!

Item was changed:
  ----- Method: LiteralVariableNode>>sizeCodeForStorePop: (in category 'code generation (new scheme)') -----
  sizeCodeForStorePop: encoder
  	self reserve: encoder.
  	^(key isVariableBinding and: [key isSpecialWriteBinding])
+ 		ifTrue: [(self sizeCodeForStore: encoder) + encoder sizePop]
- 		ifTrue: [(self sizeCodeForStorePop: encoder) + encoder sizePop]
  		ifFalse: [encoder sizeStorePopLiteralVar: index]!