Finish fix for the treatment of [inverse] in [setoid_rewrite], making a

variant of the [unify] tactic that takes a hint db as argument and does
unification modulo its [transparent_state]. Add test-file for bug #1939
and another [AdvancedTypeClasses.v] that mimicks
[AdvancedCanonicalStructure.v].


git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11685 85f007b7-540e-0410-9357-904b9bb8a0f7

1 files changed, 1 insertions, 1 deletions

diff --git a/theories/Program/Tactics.v b/theories/Program/Tactics.v
index eb5c7cc11..fff78a85a 100644
--- a/theories/Program/Tactics.v
+++ b/theories/Program/Tactics.v
@@ -93,7 +93,7 @@ Ltac clear_dup :=
         | [ H' : ?Y |- _ ] =>
           match H with
             | H' => fail 2
-            | _ => conv X Y ; (clear H' || clear H)
+            | _ => unify X Y ; (clear H' || clear H)
           end
       end
   end.