Add test for #1868: Vocab.__contains__ with ints
Add test for #1868: Vocab.__contains__ with ints

aikramer2/spaCy,aikramer2/spaCy,recognai/spaCy,spacy-io/spaCy,recognai/spaCy,aikramer2/spaCy,recognai/spaCy,spacy-io/spaCy,recognai/spaCy,honnibal/spaCy,aikramer2/spaCy,honnibal/spaCy,spacy-io/spaCy,explosion/spaCy,spacy-io/spaCy,aikramer2/spaCy,spacy-io/spaCy,honnibal/spaCy,aikramer2/spaCy,recognai/spaCy,honnibal/spaCy,explosion/spaCy,explosion/spaCy,explosion/spaCy,spacy-io/spaCy,explosion/spaCy,recognai/spaCy,explosion/spaCy