Summary:
The single value == / contains are covered by the setlike oper /ators.
Less operators is better as less overwhelming. Plus with the group operators you can add futher options or'ed togther which is a complain from the user.
Reviewed By: aigoncharov
Differential Revision: D51255253
fbshipit-source-id: 72f909319fd3d8034ebe4725a5a5254ecfeb074b