f = MakeFunc(TypeOf(f), func([]Value) []Value {
			var c <-chan int = make(chan int)
			return []Value{ValueOf(c)}
		}).Interface().(func() chan int)
		f()
	})
	// Two named types which are otherwise identical.
	shouldPanic("", func() {
		type T struct{ a, b, c int }
		type U struct{ a, b, c int }
		var f func() T
		f = MakeFunc(TypeOf(f), func([]Value) []Value {
			return []Value{ValueOf(U{a: 1, b: 2, c: 3})}