KtNameReferenceExpression(216,219): 'inc'
  isImplicitReferenceToCompanion: false
  contextSensitiveResolutionStatus: NotAvailable
  lookupLocally: false
  KaSymbolResolutionError:
    candidateSymbols = [
      kotlin/Int.inc(<dispatch receiver>: kotlin.Int): kotlin.Int
    ]
    diagnostic = ERROR<UNSAFE_CALL: Only safe (?.) or non-null asserted (!!.) calls are allowed on a nullable receiver of type 'Int?'.>
