Modelica.Math.Matrices.inv fails

[Martin Sjölund]

With MSL 2.2 or 3.1 loaded:

{{{model M

Real r[2,2] = {{1,2},{3,4}};
Real r2[2,2] = r*Modelica.Math.Matrices.inv(r);

end M;}}}

Error: Incompatible argument types to operation matrix multiplication, left type: Real 2, 2, right type: Real :, :

If we skip the matrix multiplication, the backend generates erroneous code (plus tries to link with non-existing library).

[Martin Sjölund]

Fixed in r5527