fixing return skip so that every return can be skipped except the las…

…t one

src/Sindarin/SindarinDebugger.class.st

@@ -424,8 +424,20 @@ SindarinDebugger >> skipMessageNodeWith: replacementValue [
 { #category : #'stepping -  skip' }
 SindarinDebugger >> skipReturnNode [
 
-	self flag: 'We should be able to skip a return node as long as it''s not the last one in the method'.
-	^ SindarinSkippingReturnWarning signal: 'Cannot skip a return node'
+	| node allReturnNodes |
+	node := self node.
+
+	"We collect the list of nodes associated to a return bytecode, via the IR"
+	allReturnNodes := self method ir children flatCollect: [ :irSequence |
+		                  irSequence sequence
+			                  select: [ :irInstruction |
+			                  irInstruction isReturn ]
+			                  thenCollect: [ :irInstruction |
+			                  irInstruction sourceNode ] ].
+	"If this is the last node of the method that is mapped to a return bytecode, we can't skip it and we stop there."
+	node == allReturnNodes last ifTrue: [
+		^ SindarinSkippingReturnWarning signal:
+			  'Cannot skip the last return in the method' ]
 ]
 
 { #category : #'stepping -  skip' }