[IronPython] Can't call non-python instance method with argument name

[Oonuki Makoto]

Hello,

Sorry if this is a known limitation, I've checked ML archive
and the bug tracker though...

I've got the following error with IP1.0 beta1 / .NET 2.0 (japanese).

It seems that IP uses int 10 as the instance instead of R.

---------------
>ironpythonconsole -X:ExceptionDetail
>>> import System
>>> R = System.Random()
>>> R.Next(maxValue=10)
System.Reflection.TargetException: Object does not match target type.
   at System.Reflection.RuntimeMethodInfo.CheckConsistency(Object target)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at IronPython.Runtime.ReflectedMethodBase.Invoke(MethodBinding binding)
   at IronPython.Runtime.ReflectedMethodBase.Call(Object[] args, String[] names)
   at IronPython.Runtime.Ops.Call(Object func, Object[] args, String[] names)
   at input##2(Frame )
   at IronPython.Runtime.FrameCodeDelegate.Invoke(Frame frame)
   at IronPython.Runtime.FrameCode.Run(Frame frame)
   at IronPython.Hosting.PythonEngine.DoOneInteractive(Frame topFrame)
   at IronPython.Hosting.PythonEngine.RunInteractive()
StandardError: Object does not match target type.