name  string
		elems []string
		elem  string
		out   bool
	}{
		{"exists", []string{"1", "2", "3"}, "1", true},
		{"not exists", []string{"1", "2", "3"}, "4", false},
	}
	for _, test := range containsTests {
		t.Run(test.name, func(t *testing.T) {
			if out := Contains(test.elems, test.elem); test.out != out {
				t.Errorf("Contains(%v, %s) want: %t, got: %t", test.elems, test.elem, test.out, out)
			}
		})

const (
	// Maximum number of key/elem pairs a bucket can hold.
	MapBucketCountBits = 3 // log2 of number of elements in a bucket.
	MapBucketCount     = 1 << MapBucketCountBits

	// Maximum key or elem size to keep inline (instead of mallocing per element).
	// Must fit in a uint8.
	// Note: fast map functions cannot handle big elems (bigger than MapMaxElemBytes).
	MapMaxKeyBytes  = 128

			if vv.IsValid() && !vv.IsZero() {
				results[idx] = fmt.Sprint(reflect.Indirect(vv).Interface())
			}
		}
	}

	return strings.Join(results, "_")
}

func Contains(elems []string, elem string) bool {
	for _, e := range elems {
		if elem == e {
			return true
		}
	}
	return false
}

func AssertEqual(x, y interface{}) bool {
	if reflect.DeepEqual(x, y) {
		return true
	}

  function addElem(src, elem) {
    let list = elems.get(src);
    if (!list) {
      list = [];
      elems.set(src, list);
    }
    list.push(elem);
    elem.classList.toggle('hilite', matches.has(src));
  }

  // Adds or removes cl from classList of all elements for the specified source.
  function toggleClass(src, cl, value) {
    const list = elems.get(src);
    if (list) {

//
//     type PointerType struct {
//         Tag  itag // pointerType
//         Elem typeOff
//     }
//
//     type SliceType struct {
//         Tag  itag // sliceType
//         Elem typeOff
//     }
//
//     type ArrayType struct {
//         Tag  itag // arrayType
//         Len  uint64
//         Elem typeOff
//     }
//
//     type ChanType struct {
//         Tag  itag   // chanType

	v := reflect.ValueOf(x) // ERROR "x escapes to heap"
	return v.Slice(1, 2).Bytes()
}

func elem1(x *int) int { // ERROR "x does not escape"
	v := reflect.ValueOf(x)
	return int(v.Elem().Int())
}

func elem2(x *string) string { // ERROR "leaking param: x to result ~r0 level=1"
	v := reflect.ValueOf(x)
	return string(v.Elem().String())
}

type S struct {
	A int
	B *int
	C string
}

	// parameters that it's implicitly parameterized by.
	for scope := obj.Parent(); scope != root; scope = scope.Parent() {
		for _, elem := range scope.elems {
			if elem, ok := elem.(*TypeName); ok && !elem.IsAlias() && cmpPos(elem.Pos(), obj.Pos()) < 0 {
				if tpar, ok := elem.Type().(*TypeParam); ok {
					if idx < 0 {
						idx = len(w.vertices)
						w.vertices = append(w.vertices, monoVertex{obj: obj})
					}

	// parameters that it's implicitly parameterized by.
	for scope := obj.Parent(); scope != root; scope = scope.Parent() {
		for _, elem := range scope.elems {
			if elem, ok := elem.(*TypeName); ok && !elem.IsAlias() && cmpPos(elem.Pos(), obj.Pos()) < 0 {
				if tpar, ok := elem.Type().(*TypeParam); ok {
					if idx < 0 {
						idx = len(w.vertices)
						w.vertices = append(w.vertices, monoVertex{obj: obj})
					}

	elemIsPtr := mtyp.Elem().Kind() == reflect.Pointer
	keyInstr := &decInstr{keyOp, 0, nil, ovfl}
	elemInstr := &decInstr{elemOp, 0, nil, ovfl}
	keyP := reflect.New(mtyp.Key())
	elemP := reflect.New(mtyp.Elem())
	for i := 0; i < n; i++ {
		key := decodeIntoValue(state, keyOp, keyIsPtr, keyP.Elem(), keyInstr)
		elem := decodeIntoValue(state, elemOp, elemIsPtr, elemP.Elem(), elemInstr)
		value.SetMapIndex(key, elem)

		if !found {
			pass.Reportf(fn.Pos(), "%s refers to unknown field or method: %s.%s", fnName, ident, mmbr)
		}
	}
	if len(elems) == 3 && !isExampleSuffix(elems[2]) {
		// Check ExampleFoo_Method_suffix and ExampleFoo_Method_Badsuffix.
		pass.Reportf(fn.Pos(), "%s has malformed example suffix: %s", fnName, elems[2])
	}
}

type tokenRange struct {
	p, e token.Pos
}

func (r tokenRange) Pos() token.Pos {
	return r.p