KtCallExpression(64,67): 'f()'
  KaApplicableCallCandidate:
    candidate = KaImplicitInvokeCall:
      contextArgumentMapping = {}
      contextArguments = []
      dispatchReceiver = null
      extensionReceiver = KaExplicitReceiverValue:
        expression = f
        isSafeNavigation = false
        type = kotlin.Int
      signature = KaFunctionSignature:
        receiverType = kotlin.Int
        returnType = kotlin.Unit
        symbol = /invoke(<extension receiver>: kotlin.Int): kotlin.Unit
        valueParameters = []
        contextParameters = []
        callableId = /invoke
      typeArgumentsMapping = {}
      valueArgumentMapping = {}
    isInBestCandidates = true