import Util
import Name
import Outputable
+import FastString
\end{code}
This function is a wrapper of @match@, it must be called from all the parts where
-- equating different ways of writing a coercion)
wrap WpHole WpHole = True
wrap (WpCompose w1 w2) (WpCompose w1' w2') = wrap w1 w1' && wrap w2 w2'
- wrap (WpCo c) (WpCo c') = tcEqType c c'
- wrap (WpApp d) (WpApp d') = d == d'
+ wrap (WpCast c) (WpCast c') = tcEqType c c'
+ wrap (WpApp d) (WpApp d') = d == d'
wrap (WpTyApp t) (WpTyApp t') = tcEqType t t'
-- Enhancement: could implement equality for more wrappers
-- if it seems useful (lams and lets)