f2 := func() (x, y int64) { return }
	_ = unsafe.Sizeof(f0 /* ERROR "used as value" */ ())
	assert(unsafe.Sizeof(f1()) == 8)
	_ = unsafe.Sizeof(f2()) // ERROR "too many arguments"
}

func Slice1() {
	var x int
	unsafe.Slice()        // ERROR "not enough arguments"
	unsafe.Slice(1, 2, 3) // ERROR "too many arguments"
	unsafe.Slice(1 /* ERROR "is not a pointer" */ , 2)