Expunge `GhcTcId`
GHC.Hs.Extension
has
type GhcPs = GhcPass 'Parsed -- Old 'RdrName' type param
type GhcRn = GhcPass 'Renamed -- Old 'Name' type param
type GhcTc = GhcPass 'Typechecked -- Old 'Id' type para,
type GhcTcId = GhcTc -- Old 'TcId' type param
The last of these, GhcTcId
, is a vestige of the past. Let's expunge it.