Wrong equation count with Complex - New case

[massimo ceraolo]

This is similar but different from #4606
I hope the solution is as straightforward as it was in that case!
Consider the following code:

package NumEqBug
  model TestLineZb
    parameter Real y[:] = {8, 10} ;
    Complex Z[2, 2];
  equation
      Z =LineZb(
        y=y );
  end TestLineZb;
  function LineZb
    import Modelica.ComplexMath;
    input Real y[2];
    output Complex Z[2, 2];
  algorithm
    Z:=fill(Complex(1,1),2,2);
  end LineZb;
end NumEqBug;

Checking TestLineZb I get 4 equations and 8 variables. I would expect 8 equations and 8 variables.
Note that y[] was included in the code even if it is not used because otherwise in the flattened code the function call is not included.
Tested with
v1.13.0-dev-188-g2c5818d (64-bit) for Win

[Per Östlund]

Fixed in 193c439.

[Per Östlund]

Actually, this just fixes checkModel, but it seems like the backend is also wrong since it says 16 equations/8 variables when you try to compile the model. So I guess we should keep the ticket open until that's also fixed.