LUCENE-9349: TermInSetQuery should use consumeMatchingTerms in visit() #1465
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TermInSetQuery currently iterates through all its prefix-encoded terms
in order to build an array to pass back to its visitor when visit() is called.
This seems like a waste, particularly when the visitor is not actually
consuming the terms (for example, when doing a clause-count check
before executing a search). This commit changes TermInSetQuery to use
consumeTermsMatching(), and also changes the signature of this method so
that it takes a BytesRunAutomaton supplier to allow for lazy instantiation. In
addition, IndexSearcher's clause count check wasn't counting leaves that
called consumeTermsMatching().