Eliot Miranda uploaded a new version of Kernel to project The Trunk:
http://source.squeak.org/trunk/Kernel-eem.929.mcz

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

Name: Kernel-eem.929
Author: eem
Time: 2 June 2015, 10:08:30.877 am
UUID: c05a273c-9ef2-433f-9106-012dff5a0a4d
Ancestors: Kernel-eem.928

Fix computation of prior position in new
printMethodChunkHistorically:on:moveSource:toFile:

=============== Diff against Kernel-eem.928 ===============

Item was changed:
  ----- Method: ClassDescription>>printMethodChunkHistorically:on:moveSource:toFile: (in category 'fileIn/Out') -----
  printMethodChunkHistorically: selector on: outStream moveSource: moveSource toFile: fileIndex
  	"Copy all source codes historically for the method associated with selector onto the 
  	 fileStream.  If moveSource is true, then also set the source code pointer of the method.
  	 N.B. fileIndex is interpreted as follows, 0 => just a fileOut; 1 => condensing sources;
  	 2 => condensing changes; therefore only changes on the chnages file before the last
  	 version in the sources file are recorded."
  
+ 	| preamble method newPos category changeList priorPos index |
- 	| preamble method newPos category changeList prior index |
  	category := self organization categoryOfElement: selector.
  	preamble := self name , ' methodsFor: ', category asString printString.
  	method := self methodDict at: selector.
  	(method filePosition = 0
  	 or: [method fileIndex = 0
  	 or: [(SourceFiles at: method fileIndex) isNil]])
  		ifTrue: "no source; must decompile"
  			[outStream cr; nextPut: $!!; nextChunkPut: preamble; cr.
  			outStream nextChunkPut: method decompileString.
  			outStream nextChunkPut: ' '; cr]
  		ifFalse:
  			[changeList := ChangeSet directAncestryOfVersions: (ChangeSet
  																	scanVersionsOf: method 
  																	class: self 
  																	meta: self isMeta
  																	category: category 
  																	selector: selector).
+ 			newPos := priorPos := nil.
- 			newPos := prior := nil.
  			(fileIndex = 2 "condensing changes; select changes file code and find last sources file change"
  			 and: [(index := changeList findFirst: [:chgRec| chgRec fileIndex = 1]) > 0]) ifTrue:
+ 				[priorPos := SourceFiles 
+ 								sourcePointerFromFileIndex: 1
+ 								andPosition: (changeList at: index) position.
- 				[prior := changeList at: index.
  				 changeList := changeList copyFrom: 1 to: index - 1].
  			changeList reverseDo:
  				[:chgRec|
  				chgRec file closed ifTrue:
  					[chgRec file reopen; setToEnd].
  				outStream copyPreamble: preamble from: chgRec file at: chgRec position.
+ 				priorPos ifNotNil:
- 				prior ifNotNil:
  					[outStream
  						position: outStream position - 2;
+ 						nextPutAll: ' prior: '; print: priorPos; nextPut: $!!; cr].
- 						nextPutAll: ' prior: ';
- 						print: (SourceFiles 
- 								sourcePointerFromFileIndex: prior fileIndex 
- 								andPosition: prior position);
- 						nextPut: $!!; cr].
  				"Copy the method chunk"
  				newPos := outStream position.
  				outStream copyMethodChunkFrom: chgRec file at: chgRec position.
  				chgRec file skipSeparators.      "The following chunk may have ]style["
  				chgRec file peek == $] ifTrue:
  					[outStream cr; copyMethodChunkFrom: chgRec file].
  				outStream nextChunkPut: ' '; cr.
  				chgRec position: newPos.
+ 				priorPos := SourceFiles 
+ 								sourcePointerFromFileIndex: fileIndex
+ 								andPosition: newPos].
- 				prior := chgRec].
  			moveSource ifTrue:
  				[method setSourcePosition: newPos inFile: fileIndex]].
  	^outStream!