count_sigs sigs = foldr add4 (0,0,0,0) (map sig_info sigs)
sig_info (Sig _ _ _) = (1,0,0,0)
- sig_info (ClassOpSig _ _ _ _ _) = (0,1,0,0)
+ sig_info (ClassOpSig _ _ _ _) = (0,1,0,0)
sig_info (SpecSig _ _ _) = (0,0,1,0)
sig_info (InlineSig _ _ _) = (0,0,0,1)
sig_info (NoInlineSig _ _ _) = (0,0,0,1)