To Reproduce:
1. Run the attached project.
2. Observe that, 'ArgumentException: instance' (System.ArgumentException when building in mono directly) is thrown in line:

var methodCall = Expression.Call(
instance,
method,
Expression.Convert(argument, parameter.ParameterType)
);

RgisterFactory.cs (29)

Seem to be a Mono issue, reproducible in Xamarin Studio with mono 3.1.2 and 4.0.0, but not in VS2013.