const golden = `package p

type t1 struct{}
type t2 struct{}

func f1() {}
func f2() {}

func (t1) f1() {}
func (t1) f2() {}

func (t2) f1() {}

func (x *t2) f2() {}
`

func TestFilterDuplicates(t *testing.T) {
	// parse input
	fset := token.NewFileSet()
	file, err := parser.ParseFile(fset, "", input, 0)
	if err != nil {
		t.Fatal(err)
	}

	// create package

		notEqual = append(notEqual, strconv.Itoa(i))
	}
	notEqual[size-1] = "z"

	for n := 0; n < b.N; n++ {
		EqualUnordered(l, equal)
		EqualUnordered(l, notEqual)
	}
}

func TestFilterDuplicates(t *testing.T) {
	tests := []struct {
		name string
		in   []string
		out  []string
	}{
		{
			name: "empty",
			in:   nil,
			out:  nil,
		},
		{
			name: "one",