Bug fixed: an unification exception used to escape during eat_prods.

diff --git a/helm/software/components/cic_unification/cicRefine.ml b/helm/software/components/cic_unification/cicRefine.ml
index d52b8aa7c66b77d041c1ba5b151e9e9606b84044..4569601cd082212fd448e90b84490c515b0b9d80 100644 (file)
--- a/helm/software/components/cic_unification/cicRefine.ml
+++ b/helm/software/components/cic_unification/cicRefine.ml
@@ -1204,14 +1204,16 @@ and type_of_aux' ?(localization_tbl = Cic.CicHash.create 1) metasenv context t
             (fun (metasenv,last,coerc) -> 
               let pp t = 
                 CicMetaSubst.ppterm_in_context ~metasenv subst t context in
-              let subst,metasenv,ugraph =
-               fo_unif_subst subst context metasenv last he ugraph in
-              debug_print (lazy ("New head: "^ pp coerc));
               try
+               let subst,metasenv,ugraph =
+                fo_unif_subst subst context metasenv last he ugraph in
+                debug_print (lazy ("New head: "^ pp coerc));
                 let tty,ugraph =
-                 CicTypeChecker.type_of_aux' ~subst metasenv context coerc ugraph in 
-                debug_print (lazy (" has type: "^ pp tty));
-                Some (coerc,tty,subst,metasenv,ugraph)
+                 CicTypeChecker.type_of_aux' ~subst metasenv context coerc
+                  ugraph
+                in 
+                 debug_print (lazy (" has type: "^ pp tty));
+                 Some (coerc,tty,subst,metasenv,ugraph)
               with
               | Uncertain _ | RefineFailure _
               | HExtlib.Localized (_,Uncertain _)