func MultFn(a, b int64) int64
func NegMultFn(a, b int64) int64
type Mult struct{}
func (Mult) Multiply(a, b int) int
N.B. Different types than AddFunc to test intra-line disambiguation.
type MultFunc func(int64, int64) int64
func MultClosure() MultFunc
func NegMultClosure() MultFunc
type Multiplier interface { Multiply(a, b int) int }
type NegMult struct{}
func (NegMult) Multiply(a, b int) int