nil as untyped zero value for Go

zero.go

package main

func main() {
	var s string
	var _ = s == nil // true
	
	var i int
	var _ = i == nil // true
	
	var v struct {
		time.Time
	}
	var _ = v == nil // true
	var _ = v.Time == nil // true
	
	var a [4]uint8
	var _ = a == nil // true
	
	var b []uint8
	var _ = b == nil // true
}