KtCallExpression(134,137): 'x()'
  KaCallResolutionError:
    candidateCalls = [
      KaImplicitInvokeCall:
        contextArgumentMapping = {}
        contextArguments = []
        dispatchReceiver = null
        extensionReceiver = KaExplicitReceiverValue:
          expression = x
          isSafeNavigation = false
          type = kotlin.Int
        signature = KaFunctionSignature:
          receiverType = kotlin.Int
          returnType = kotlin.Unit
          symbol = invoke(<extension receiver>: kotlin.Int, a: kotlin.String): kotlin.Unit
          valueParameters = [
            KaVariableSignature:
              name = a
              receiverType = null
              returnType = kotlin.String
              symbol = a: kotlin.String
              contextParameters = []
              callableId = null
          ]
          contextParameters = []
          callableId = null
        typeArgumentsMapping = {}
        valueArgumentMapping = {},
      KaImplicitInvokeCall:
        contextArgumentMapping = {}
        contextArguments = []
        dispatchReceiver = null
        extensionReceiver = KaExplicitReceiverValue:
          expression = x
          isSafeNavigation = false
          type = kotlin.Int
        signature = KaFunctionSignature:
          receiverType = kotlin.Int
          returnType = kotlin.Unit
          symbol = invoke(<extension receiver>: kotlin.Int, b: kotlin.Boolean): kotlin.Unit
          valueParameters = [
            KaVariableSignature:
              name = b
              receiverType = null
              returnType = kotlin.Boolean
              symbol = b: kotlin.Boolean
              contextParameters = []
              callableId = null
          ]
          contextParameters = []
          callableId = null
        typeArgumentsMapping = {}
        valueArgumentMapping = {},
      KaSimpleFunctionCall:
        contextArgumentMapping = {}
        contextArguments = []
        dispatchReceiver = null
        extensionReceiver = null
        signature = KaFunctionSignature:
          receiverType = null
          returnType = kotlin.Unit
          symbol = /x(c: kotlin.Char): kotlin.Unit
          valueParameters = [
            KaVariableSignature:
              name = c
              receiverType = null
              returnType = kotlin.Char
              symbol = c: kotlin.Char
              contextParameters = []
              callableId = null
          ]
          contextParameters = []
          callableId = /x
        typeArgumentsMapping = {}
        valueArgumentMapping = {}
    ]
    diagnostic = ERROR<NONE_APPLICABLE: None of the following candidates is applicable:

    fun Int.invoke(a: String): Unit:
      No value passed for parameter 'a'.

    fun Int.invoke(b: Boolean): Unit:
      No value passed for parameter 'b'.

    fun x(c: Char): Unit:
      No value passed for parameter 'c'.>