Error parsing `CREATE TABLE` with both `CHECK` and `NOT NULL`

[nicktobey]

Example SQL:

create table t123 (c1 varchar(5) check (c1 in ('v1', 'v2')) NOT NULL);

This works in MySQL but fails to parse in Dolt with the error "syntax error at position 69 near 'NULL'"

This is most likely happening because the grammar for CHECK expressions is [CONSTRAINT [symbol]] CHECK (expr) [[NOT] ENFORCED]

Dolt uses an LL1 parser that is likely assuming that the NOT is part of the check expression and is expecting it to be followed by ENFORCED.