for i := 0; i < b.N; i++ {
		j := i
		s += func() int {
			ss = &j
			return 2
		}()
	}
}

func addr1(x int) *int {
	return func() *int { return &x }()
}

func BenchmarkCallClosure3(b *testing.B) {
	for i := 0; i < b.N; i++ {
		ss = addr1(i)
	}
}

func addr2() (x int, p *int) {
	return 0, func() *int { return &x }()
}

func BenchmarkCallClosure4(b *testing.B) {