func TestSingleBucketMapStringKeys_NoDupLen(t *testing.T) {
	testMapLookups(t, map[string]string{
		"x":                      "x1val",
		"xx":                     "x2val",
		"foo":                    "fooval",
		"xxxx":                   "x4val",
		"xxxxx":                  "x5val",
		"xxxxxx":                 "x6val",
		strings.Repeat("x", 128): "longval",
	})
}

func testMapLookups(t *testing.T, m map[string]string) {

}

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

	xval := reflect.ValueOf(x)
	yval := reflect.ValueOf(y)
	if xval.Kind() == reflect.Ptr && xval.IsNil() ||
		yval.Kind() == reflect.Ptr && yval.IsNil() {
		return false
	}

	if valuer, ok := x.(driver.Valuer); ok {
		x, _ = valuer.Value()
	}

func (check *Checker) shift(x, y *operand, e ast.Expr, op token.Token) {
	// TODO(gri) This function seems overly complex. Revisit.

	var xval constant.Value
	if x.mode == constant_ {
		xval = constant.ToInt(x.val)
	}

	if allInteger(x.typ) || isUntyped(x.typ) && xval != nil && xval.Kind() == constant.Int {
		// The lhs is of integer type or an untyped constant representable
		// as an integer. Nothing to do.
	} else {

func (check *Checker) shift(x, y *operand, e syntax.Expr, op syntax.Operator) {
	// TODO(gri) This function seems overly complex. Revisit.

	var xval constant.Value
	if x.mode == constant_ {
		xval = constant.ToInt(x.val)
	}

	if allInteger(x.typ) || isUntyped(x.typ) && xval != nil && xval.Kind() == constant.Int {
		// The lhs is of integer type or an untyped constant representable
		// as an integer. Nothing to do.
	} else {

  if (shape_x.size() == shape_y.size()) {
    llvm::SmallVector<int64_t, 4> out_shape(shape_x.size());
    for (int i = 0; i < shape_x.size(); i++) {
      auto x_val = shape_x[i];
      auto y_val = shape_y[i];
      out_shape[i] = std::max(x_val, y_val);
    }
    return tensorflow::GetTypeFromTFTensorShape(out_shape, element_type);
  }

  auto shape_large = shape_x.size() > shape_y.size() ? shape_x : shape_y;