Stack overflow when parsing SQL consisting of many imbalanced open parenthesis

This code segfaults with a stack overflow on both 0.9.0 from crates.io as well as loading from git (Version 35ef0eee3)

```rust
use sqlparser::dialect::GenericDialect;
use sqlparser::parser::Parser;

fn main() {
    let sql = "(".repeat(1024);

    let dialect = GenericDialect {};

    let _ = Parser::parse_sql(&dialect, &sql);
}
```