Merge commit 'upstream/8.2.beta3+dfsg'

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diff --git a/test-suite/bugs/closed/shouldsucceed/1865.v b/test-suite/bugs/closed/shouldsucceed/1865.v
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+(* Check that tactics (here dependent inversion) do not generate
+   conversion problems T <= U with sup's of universes in U *)
+
+(* Submitted by David Nowak *)
+
+Inductive list (A:Set) : nat -> Set :=
+| nil : list A O
+| cons : forall n, A -> list A n -> list A (S n).
+
+Definition f (n:nat) : Type :=
+  match n with
+  | O => bool
+  | _ => unit
+  end.
+
+Goal forall A n, list A n -> f n.
+intros A n.
+dependent inversion n.