KtCallExpression(99,102): 'a()'
  KaCallResolutionSuccess:
    call = KaImplicitInvokeCall:
      contextArgumentMapping = {}
      contextArguments = [
        KaImplicitReceiverValue:
          symbol = <unused var>: A
          type = A
      ]
      dispatchReceiver = null
      extensionReceiver = KaExplicitReceiverValue:
        expression = a
        isSafeNavigation = false
        type = A
      signature = KaFunctionSignature:
        receiverType = A
        returnType = kotlin.Unit
        symbol = /invoke(<extension receiver>: A): kotlin.Unit
        valueParameters = []
        contextParameters = [
          KaVariableSignature:
            name = a
            receiverType = null
            returnType = A
            symbol = a: A
            contextParameters = []
            callableId = null
        ]
        callableId = /invoke
      typeArgumentsMapping = {}
      valueArgumentMapping = {}