expression: av
expected type: KtFunctionalType:
  annotationsList: []
  ownTypeArguments: [
    KtUsualClassType:
      annotationsList: []
      ownTypeArguments: []
      type: kotlin/Int
    KtUsualClassType:
      annotationsList: []
      ownTypeArguments: []
      type: kotlin/String
  ]
  type: kotlin/Function1<kotlin/Int, kotlin/String>
