Error on some GRANTs when trailing commas are enabled

[MohamedAbdeen21]

How to reproduce

use sqlparser::{
    dialect::GenericDialect,
    parser::{Parser, ParserError, ParserOptions},
};

fn main() -> Result<(), ParserError> {
    let dialect = GenericDialect {};
    let options = ParserOptions::new().with_trailing_commas(true);

    let result = Parser::new(&dialect)
        .with_options(options)
        .try_with_sql("GRANT USAGE, SELECT ON SEQUENCE p TO u")?
        .parse_statements();

    println!("{:?}", result);

    Ok(())
}

Output

Err(ParserError("Expected ON, found: SELECT at Line: 1, Column 14"))

Expected Output

Should parse successfully.

Ok([Grant { privileges: Actions([Usage, Select { columns: None }]), objects: Sequenc
es([ObjectName([Ident { value: "p", quote_style: None }])]), grantees: [Ident { valu
e: "u", quote_style: None }], with_grant_option: false, granted_by: None }])

Cause

parse_comma_separated guesses that the comma is a trailing comma since it's followed by a reserved keyword (SELECT).