c := make(chan bool, 1)
	p := InterImpl{}
	var x Inter = p
	go func() {
		p2 := InterImpl{}
		x = p2
		c <- true
	}()
	x.Foo(0)
	<-c
}

func TestRaceInterCall2(t *testing.T) {
	c := make(chan bool, 1)
	p := InterImpl{}
	var x Inter = p
	z := 0
	go func() {
		z = 42
		c <- true
	}()
	x.Foo(z)
	<-c
}