RnBinds
rnTopBindsLHS
rnTopBindsRHS
rnValBindsRHS
rnLocalBindsAndThen
rnLocalValBindsLHS
rnLocalValBindsRHS
rnMethodBinds
renameSigs
mkSigTvFn
rnMatchGroup
rnGRHSs
rnGRHS
makeMiniFixityEnv
type MiniFixityEnv
data HsSigCtxt