Chris Muller uploaded a new version of Kernel to project Squeak 4.6:
http://source.squeak.org/squeak46/Kernel-topa.935.mcz

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

Name: Kernel-topa.935
Author: topa
Time: 6 July 2015, 4:50:44.188 pm
UUID: d30beb7f-4706-4876-9aa1-fd8d45ba4733
Ancestors: Kernel-eem.934

Reinstall CompiledMethod>>#hasBreakpoint

=============== Diff against Kernel-eem.932 ===============

Item was changed:
  ----- Method: ClassDescription>>logMethodSource:forMethodWithNode:inCategory:withStamp:notifying: (in category 'private') -----
  logMethodSource: aText forMethodWithNode: aCompiledMethodWithNode inCategory: category withStamp: changeStamp notifying: requestor
  	| priorMethodOrNil newText |
  	priorMethodOrNil := self compiledMethodAt: aCompiledMethodWithNode selector ifAbsent: [].
+ 	(priorMethodOrNil notNil and: [priorMethodOrNil hasBreakpoint]) ifTrue:
+ 		[priorMethodOrNil := priorMethodOrNil getAndForgetUnbreakpointedOriginal].
+ 	newText := (requestor notNil and: [Preferences confirmFirstUseOfStyle])
+ 					ifTrue: [aText askIfAddStyle: priorMethodOrNil req: requestor]
+ 					ifFalse: [aText].
+ 	aCompiledMethodWithNode method
+ 		putSource: newText
- 	newText := (requestor notNil
- 						and: [Preferences confirmFirstUseOfStyle])
- 			ifTrue: [aText askIfAddStyle: priorMethodOrNil req: requestor]
- 			ifFalse: [aText].
- 	aCompiledMethodWithNode method putSource: newText
  		fromParseNode: aCompiledMethodWithNode node
+ 		class: self
+ 		category: category
+ 		withStamp: changeStamp 
+ 		inFile: 2
+ 		priorMethod: priorMethodOrNil!
- 		class: self category: category withStamp: changeStamp 
- 		inFile: 2 priorMethod: priorMethodOrNil.!

Item was added:
+ ----- Method: CompiledMethod>>hasBreakpoint (in category 'testing') -----
+ hasBreakpoint
+ 	^false!