A bracket-quoted identifier containing `]]` round-trips to SQL that fails to reparse

[DRMacIver]

use sqlparser::dialect::MsSqlDialect;
use sqlparser::parser::Parser;

fn main() {
    let sql = "SELECT [a]]b]";
    let ast = Parser::parse_sql(&MsSqlDialect {}, sql).unwrap();
    let printed = ast[0].to_string();
    println!("input:    {}", sql);
    println!("printed:  {}", printed);
    let reparsed = Parser::parse_sql(&MsSqlDialect {}, &printed);
    println!("reparsed: {:?}", reparsed);
}

input:    SELECT [a]]b]
printed:  SELECT [a]b]
reparsed: Err(ParserError("Expected: end of statement, found: ] at Line: 1, Column: 12"))

[a]]b] is a bracket-quoted identifier whose value is a]b (the tokenizer folds the doubled ]] into a literal ]). Displaying the parsed AST back to SQL writes [a]b] instead, and that string does not parse as the same identifier: it parses as a followed by leftover tokens ]b].

Tested on sqlparser 0.62.0.

BTW, this bug was found using hegel. Happy to contribute the tests if you're interested.