Don't rely on autogenerated names

This fixes all of the private-names warnings emitted by
compiling fiat-crypto with https://github.com/coq/coq/pull/268 (minus
the ones in coqprime, which I didn't touch).

1 files changed, 3 insertions, 3 deletions

diff --git a/src/Util/AdditionChainExponentiation.v b/src/Util/AdditionChainExponentiation.v
index e03b2e36f..f35c4e9ea 100644
--- a/src/Util/AdditionChainExponentiation.v
+++ b/src/Util/AdditionChainExponentiation.v
@@ -39,7 +39,7 @@ Section AddChainExp.
       (Hl:Logic.eq (length acc) (length ref)),
       fold_chain id op is acc = (fold_chain 0 N.add is ref) * x.
   Proof using Type*.
-    induction is; intros; simpl @fold_chain.
+    intro x; induction is; intros acc ref H Hl; simpl @fold_chain.
     { repeat break_match; specialize (H 0%nat); rewrite ?nth_default_cons, ?nth_default_cons_S in H;
       solve [ simpl length in *; discriminate | apply H | rewrite scalarmult_0_l; reflexivity ]. }
     { repeat break_match. eapply IHis; intros; [|auto with distr_length]; [].
@@ -52,8 +52,8 @@ Section AddChainExp.
 
   Lemma fold_chain_exp x is: fold_chain id op is [x] = (fold_chain 0 N.add is [1]) * x.
   Proof using Type*.
-    eapply fold_chain_exp'; intros; trivial.
-    destruct i; try destruct i; rewrite ?nth_default_cons_S, ?nth_default_cons, ?nth_default_nil;
+    eapply fold_chain_exp'; trivial; intros i.
+    destruct i as [|i]; try destruct i; rewrite ?nth_default_cons_S, ?nth_default_cons, ?nth_default_nil;
       rewrite ?scalarmult_1_l, ?scalarmult_0_l; reflexivity.
   Qed.
 End AddChainExp.