Eliot Miranda uploaded a new version of Kernel to project The Trunk:
http://source.squeak.org/trunk/Kernel-eem.1023.mcz

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

Name: Kernel-eem.1023
Author: eem
Time: 13 May 2016, 12:47:58.825645 pm
UUID: dbe31b16-e7d4-4342-a314-a2faedcc6ce3
Ancestors: Kernel-eem.1022

CompiledMethod>>pcPreviousTo: is used in places other thna the debugger, so it has to be in kernel.  Some time it may be replaceable with the new BytecodeEncoder class>>#pcPreviousTo:in:for:, but for now put it in the right package.

=============== Diff against Kernel-eem.1022 ===============

Item was added:
+ ----- Method: CompiledMethod>>pcPreviousTo: (in category 'scanning') -----
+ pcPreviousTo: thePC
+ 	"Answer the pc of the bytecode before the bytecode at thePC."
+ 	| pc prevPc byte encoderClass |
+ 	thePC > self endPC ifTrue: [^self endPC].
+ 	pc := self initialPC.
+ 	encoderClass := self encoderClass.
+ 	[pc < thePC] whileTrue:
+ 		[byte := self at: (prevPc := pc).
+ 		 [pc := pc + (encoderClass bytecodeSize: byte).
+ 		  encoderClass isExtension: byte] whileTrue:
+ 			[byte := self at: pc]].
+ 	^prevPc!