private static bool CheckTypeForMethodUsage (TypeDefinition type, MethodReference method)
		{
			if (type.HasGenericParameters)
				type = type.GetElementType ().Resolve ();

			HashSet<ulong> methods = GetCache (type);
			if (methods.Contains (GetToken (method)))
				return true;

			MethodDefinition md = method.Resolve ();
			if ((md != null) && md.HasOverrides) {
				foreach (MethodReference mr in md.Overrides) {
					if (methods.Contains (GetToken (mr)))
						return true;
				}
			}
			return false;
		}
 private static bool DontConsiderForMethodRenaming(TypeDefinition declaringType)
 {
     return declaringType.FullName.StartsWith("Dot42.Internal.")
        ||  declaringType.IsPrimitive// TODO: check this.
        ||  declaringType.GetElementType().IsNullableT()
        ||  declaringType.FullName == "System.String"
        || (declaringType.FullName.StartsWith("System") && declaringType.IsInterface);
 }