KtSuccessCallInfo:
  call = KtSimpleFunctionCall:
    isImplicitInvoke = true
    partiallyAppliedSymbol = KtPartiallyAppliedSymbol:
      dispatchReceiver = KtExplicitReceiverValue:
        expression = x
        isSafeNavigation = false
      extensionReceiver = null
      signature = KtFunctionLikeSignature:
        receiverType = null
        returnType = kotlin.Unit
        symbol = kotlin/Function1.invoke(<dispatch receiver>: kotlin.Function1<P1, R>, p1: P1): R
        valueParameters = [
          KtVariableLikeSignature:
            name = a
            receiverType = null
            returnType = @R|kotlin.ParameterName|(name = String(a))  kotlin.Int
            symbol = p1: P1
        ]
    argumentMapping = {
      1 -> (KtVariableLikeSignature:
        name = a
        receiverType = null
        returnType = @R|kotlin.ParameterName|(name = String(a))  kotlin.Int
        symbol = p1: P1)
    }