[TableGen] Add Confined, IntMinValue, and ArrayMinCount for attribute constraints

    This CL introduces Confined as a general mechanism to compose complex attribute
    constraints out of more primitive ones. It's particularly useful for automatically
    generating op definitions from some external source, where we can have random
    combinations of primitive constraints and it would be impractical to define a case
    for each of such combination.

    Two primitive attribute constraints, IntMinValue and ArrayMinCount, are added to be
    used together with Confined.

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PiperOrigin-RevId: 241435955