get_implied_value_internal
if (get_implied_value_internal(index, recurse_cnt, &sval)) {
static bool get_implied_value_internal(struct expression *expr, int *recurse_cnt, sval_t *res_sval);
if (!get_implied_value_internal(expr->right, recurse_cnt, &right))
if (!get_implied_value_internal(expr->right, recurse_cnt, &right))
if (get_implied_value_internal(expr->left, recurse_cnt, &left))
if (get_implied_value_internal(expr->right, recurse_cnt, &right))