- use argumentNames and temporaryNames from the ast instead of the de…

…precated tempNames

- we use #ast instead of #parseTree to fill the AST Cache

src/Kernel/CompiledMethod.class.st

@@ -1069,7 +1069,8 @@ CompiledMethod >> tags [
 
 { #category : #'source code management' }
 CompiledMethod >> tempNames [
-	^self methodNode tempNames.
+	"on the level of the compiled method, tempNames includes argument names"
+	^self ast argumentNames, self ast temporaryNames
 ]
 
 { #category : #'accessing-tags' }