KtCallExpression(134,137): 'x()'
  KaSymbolResolutionError:
    candidateSymbols = [
      /x(c: kotlin.Char): kotlin.Unit,
      invoke(<extension receiver>: kotlin.Int, a: kotlin.String): kotlin.Unit,
      invoke(<extension receiver>: kotlin.Int, b: kotlin.Boolean): kotlin.Unit
    ]
    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'.>