-- Typecheck it
maybe_tc_return
- <- typecheckExpr dflags wrap_io syn_map pcs1 hst print_unqual this_module rn_expr;
+ <- typecheckExpr dflags wrap_io pcs1 hst print_unqual this_module rn_expr;
case maybe_tc_return of {
Nothing -> return ({-WAS:pcs1-} pcs0, Nothing);
Just (pcs2, tc_expr, ty) -> do