Add implicit bool checking in expr predication.

[Shylock-Hg]

What type of PR is this?

• bug
• feature
• enhancement

What problem(s) does this PR solve?

Issue(s) number:

Close https://github.com/vesoft-inc/nebula-ent/issues/1624

Description:

How do you solve it?

Special notes for your reviewer, ex. impact of this fix, design document, etc:

Checklist:

Tests:

• Unit test(positive and negative cases)
• Function test
• Performance test
• N/A

Affects:

• Documentation affected (Please add the label if documentation needs to be modified.)
• Incompatibility (If it breaks the compatibility, please describe it and add the label.）
• If it's needed to cherry-pick (If cherry-pick to some branches is required, please label the destination version(s).)
• Performance impacted: Consumes more CPU/Memory

Release notes:

Please confirm whether to be reflected in release notes and how to describe:

ex. Fixed the bug .....

[Shylock-Hg]

"""
MATCH (person:Person)-[:KNOWS*2]-(friend)-[:IS_LOCATED_IN]->(city:Place)
WHERE id(person) == "p-6597069812321" AND id(friend) != "p-6597069812321" AND NOT (friend)-[:KNOWS]-(person)
WITH person, city, friend, date(friend.Person.birthday) as birthday
WHERE  (birthday.month==10 AND birthday.day>=21) OR
        (birthday.month==(10%12)+1 AND birthday.day<22)
WITH DISTINCT friend, city, person
OPTIONAL MATCH (friend)<-[:POST_HAS_CREATOR]-(post:Post)
WITH friend, city, collect(post) AS posts, person
WITH friend,
     city,
     size(posts) AS postCount,
     size([p IN posts WHERE (p)-[:HAS_TAG]->()<-[:HAS_INTEREST]-(person)]) AS commonPostCount
RETURN toInteger(substr(id(friend), 2)) AS personId,
       friend.Person.firstName AS personFirstName,
       friend.Person.lastName AS personLastName,
       commonPostCount - (postCount - commonPostCount) AS commonInterestScore,
       friend.Person.gender AS personGender,
       city.Place.name AS personCityName
ORDER BY commonInterestScore DESC, personId ASC
LIMIT 10
"""