---- Reported by flipper98@gmx.net 2007-07-29 13:55:21 MST ----

Description of Problem:

The following test case shows a situation where the is-operator fails.

Steps to reproduce the problem:
See test case.

Actual Results:
is-operator type comparison (ex is NestedException) returns false, although
the compared instance is of the compared type.

Note: it works as expected if you remove the generic brackets (<T1, T2>,
<int, int>) from the class definitions, so i guess the problem is related
to generics.

Expected Results:
is-operator type comparison should return true.

How often does this happen? 
always.

Additional Information:
The problem occurs on both, mono 1.2.3.1 and mono 1.2.4.
Test case: 

using System;

namespace AnyTest
{
	class MainClass
	{
		public static void Main(string[] args)
		{
			B b = new B();
			b.M();
		}
	}
	
	abstract class A<T1, T2>
	{
	    public void M() {
	        try {
	            M2();
	        } catch(Exception ex) {
	            if (ex is NestedException)
	                Console.WriteLine("NestedException caught: " + ex.GetType());
	            else
	                Console.WriteLine("Other Exception caught: " + ex.GetType());
	        }
	    }
	    
	    protected abstract void M2();
	    
	    protected class NestedException : Exception
	    {
	        public NestedException() : base() {}
	    }
	}
	
	class B : A<int, int>
	{
	    protected override void M2() {
	        throw new NestedException();
	    }
	}
}


Unknown bug field "cf_op_sys_details" encountered while moving bug
   <cf_op_sys_details>Ubuntu feisty</cf_op_sys_details>
Unknown bug field "cf_version_details" encountered while moving bug
   <cf_version_details>mono 1.2.3.1 and mono 1.2.4</cf_version_details>