Thursday would have been Jonah Tong’s last chance with the New York Mets this year if he repeated what he did his last time on the mound against the Texas Rangers. He got better as the game went along, helping to answer one Mets question while raising another. Question answered: Does Jonah Tong belong in the big leagues? He is one of their 13 best pitchers who should remain in the big leagues. Question raised: Exactly what is Jonah Tong’s role with the Mets?