Exception on code completion of instrumented selector

[Gabriel-Darbord]

When writing code and HeuristicCompletion triggers a selector lookup, it can lead to an exception when a method with this selector is instrumented.
This happens because the selector is a MpHiddenSelector: Message not understood: MpHiddenSelector >> #asSymbol.

Here is the stack trace

MpHiddenSelector(Object)>>doesNotUnderstand: #asSymbol
CoAvoidRepeatedFetcher>>hasAlreadyReturned:
[ :elem |
			(self hasAlreadyReturned: elem)
				ifFalse: [
					"As the NECEntry does not know how to compare I will enter the content as symbol"
					elements add: elem contents asSymbol.
					aBlock value: elem ] ] in CoAvoidRepeatedFetcher>>entriesDo: in Block: [ :elem |...
[ :e |
		aBlock value: (NECSelectorEntry contents: e node: astNode)] in CoClassImplementedMessagesFetcher>>entriesDo: in Block: [ :e |...
MethodDictionary>>keysDo:
Behavior class(Behavior)>>selectorsDo:
CoClassImplementedMessagesFetcher>>entriesDo:
CoHierarchyFetcher>>entriesDo:
[ :completion | completion entriesDo: aBlock ] in CoFetcherSequence>>entriesDo: in Block: [ :completion | completion entriesDo: aBlock ]
OrderedCollection>>do:
OrderedCollection>>do:
CoFetcherSequence>>entriesDo:
CoAvoidRepeatedFetcher>>entriesDo:
CoNarrowHistoryFetcher>>entriesDo:
[ :g |
			self entriesDo: [ :entry |
				(self acceptsEntry: entry)
					ifTrue: [ g yield: entry ] ] ] in CoNarrowHistoryFetcher(CoFetcher)>>generator in Block: [ :g |...
Generator>>fork
CoNarrowHistoryFetcher(CoFetcher)>>next
[ (last := self next) ifNotNil: [ :each |
			stream nextPut: each.
			total := total + 1 ] ] in [ :stream | | total last |
		total := 0.
		[ (last := self next) ifNotNil: [ :each |
			stream nextPut: each.
			total := total + 1 ] ]
			doWhileTrue: [ total < anInteger and: [ last isNotNil ] ] ] in CoNarrowHistoryFetcher(CoFetcher)>>next: in Block: [ (last := self next) ifNotNil: [ :each |...
FullBlockClosure(BlockClosure)>>doWhileTrue:
[ :stream | | total last |
		total := 0.
		[ (last := self next) ifNotNil: [ :each |
			stream nextPut: each.
			total := total + 1 ] ]
			doWhileTrue: [ total < anInteger and: [ last isNotNil ] ] ] in CoNarrowHistoryFetcher(CoFetcher)>>next: in Block: [ :stream | | total last |...
Array class(SequenceableCollection class)>>new:streamContents:
CoNarrowHistoryFetcher(CoFetcher)>>next:
CoResultSet>>fetch:
CoResultSet>>ensureResults:
CoResultSet>>first:
CoCompletionContext>>entries
CoCompletionContext>>entryCount
NECMenuMorph>>itemsCount
NECMenuMorph>>selected:
NECMenuMorph>>refreshSelection
NECMenuMorph>>engine:position:
NECMenuMorph class>>engine:position:
CoCompletionEngine(CompletionEngine)>>openMenuForced:
[
				editor atCompletionPosition ifTrue: [ self openMenuForced: false ]] in [
			(Delay forMilliseconds: NECPreferences popupAutomaticDelay) wait.
			MorphicUIManager new defer:  [
				editor atCompletionPosition ifTrue: [ self openMenuForced: false ]]
		] in CoCompletionEngine(CompletionEngine)>>resetCompletionDelay in Block: [...

[jordanmontt]

Thanks Gabriel! I have just fixed this in the last commit