Imported Upstream version 8.6upstream/8.6

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+(************************************************************************)
+(*  v      *   The Coq Proof Assistant  /  The Coq Development Team     *)
+(* <O___,, *   INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016     *)
+(*   \VV/  **************************************************************)
+(*    //   *      This file is distributed under the terms of the       *)
+(*         *       GNU Lesser General Public License Version 2.1        *)
+(************************************************************************)
+
+(************************************************************************)
+(*                              EqDecide                               *)
+(*   A tactic for deciding propositional equality on inductive types   *)
+(*                           by Eduardo Gimenez                        *)
+(************************************************************************)
+
+(*i camlp4deps: "grammar/grammar.cma" i*)
+
+open Eqdecide
+
+DECLARE PLUGIN "g_eqdecide"
+
+TACTIC EXTEND decide_equality
+| [ "decide" "equality" ] -> [ decideEqualityGoal ]
+END
+
+TACTIC EXTEND compare
+| [ "compare" constr(c1) constr(c2) ] -> [ compare c1 c2 ]
+END