Added GetDefinition () for the specialized method to get the

underlying (non specialized) method.
Should be in line with GetDefinition () in types - what's wrong with
that (I've a use case for that).

ICSharpCode.NRefactory/TypeSystem/Implementation/SpecializedMethod.cs

@@ -192,6 +192,11 @@ namespace ICSharpCode.NRefactory.TypeSystem.Implementation
 			}
 		}
 
+		public IMethod GetDefinition ()
+		{
+			return methodDefinition;
+		}
+		
 		public override string ToString()
 		{
 			StringBuilder b = new StringBuilder("[");