\begin{code}
module TcUnify where
import TcType	( TcTauType )
import TcRnTypes( TcM )
import Coercion (CoercionI)

-- This boot file exists only to tie the knot between
--		TcUnify and TcSimplify

unifyType :: TcTauType -> TcTauType -> TcM CoercionI
\end{code}