RBSequenceNode: #stop does not take temp definitions into account

[MarcusDenker]

We have found that #stop for SquenceNode is wrong if there are no statements but temp definitions. e.g. method | temp |
the stop of the temp is correct, just RBSequenceNode returns 0.

A possible fix:

stop
	| tempDefinitionStop |
	tempDefinitionStop := (self temporaries isNotEmpty) 
		ifTrue: [ self temporaries last stop  ]
	 	ifFalse: [ 0 ]. 
	
	^(periods isEmpty ifTrue: [tempDefinitionStop] ifFalse: [periods last]) 
		max: (statements isEmpty ifTrue: [tempDefinitionStop] ifFalse: [statements last stop])

[MarcusDenker]

strongly I can not push

stop

^{  
temporaries isEmpty ifTrue: [0] ifFalse: [ self temporaries last stop]. 
periods isEmpty ifTrue: [0] ifFalse: [periods last].
statements isEmpty ifTrue: [0] ifFalse: [statements last stop]
} max

and for a new RBSequenceNodeTest:

testStop
| ast |
ast := RBParser parseMethod: 'method | temp |'.
self assert: ast body stop equals: ast body temporaries last stop.

[MarcusDenker]

merged