c{0: 0 (((2 integer)) <- ((copy)) ((0 literal))) -- nil
c{1: 0 ✓ (((2 integer)) <- ((copy)) ((0 literal)))
cn0: convert-names in f1
cn0: (((2 integer)) <- ((copy)) ((0 literal))) nil nil
cn0: checking arg ((0 literal))
cn0: checking oarg ((2 integer))
maybe-add: ((2 integer))
cn1: (((2 integer)) <- ((copy)) ((0 literal)))
