t / t4018 / golang-complex-functionon commit t/helper: merge (unused) test-match-trees into test-tool (9080e75)
   1type Test struct {
   2        a Type
   3}
   4
   5func (t *Test) RIGHT(a Type) (Type, error) {
   6        t.a = a
   7        return ChangeMe, nil
   8}