private static void Main(string[] args)
    {
        Test<int>();
        TestList<int>(new List<int>{ 1, 2,3 }, 1, 2, 3, 4, 5, 6, 7,8);
        Console.ReadKey();
    }

    private static void TestList<T>(List<T> list, T item, T t2, T t3, T t4, T t5, T t6, T t7, int t8)
    {
        Console.WriteLine(item == null);
        Console.WriteLine("Collection contains {0}? {1}",  item, list.Contains(item));
    }

IL_002e:  call       void BoxingAndUnboxing.Program::TestList<int32>(class        [mscorlib]System.Collections.Generic.List`1<!!0>,
                                                                   !!0,
                                                                   !!0,
                                                                   !!0,
                                                                   !!0,
                                                                   !!0,
                                                                   !!0,
                                                                   !!0,
                                                                   int32)

.method private hidebysig static void  TestList<T>(class [mscorlib]System.Collections.Generic.List`1<!!T> list,
                                               !!T item,
                                               !!T t2,
                                               !!T t3,
                                               !!T t4,
                                               !!T t5,
                                               !!T t6,
                                               !!T t7,
                                               int32 t8) cil managed

IL_001d:  callvirt   instance bool class [mscorlib]System.Collections.Generic.List`1<!!T>::Contains(!0)