Got rid of some dumb warnings.

FunLMap.v

@@ -228,7 +228,6 @@ Module FunLMap (L : Locations) <: (LocationMap L).
     cbn in *.
     destruct (inb l ls2) eqn:eq.
     rewrite IHls1'; intros l' i; apply sub; right; auto.
-    Check inb_spec.
     pose proof (proj2 (inb_spec l ls2) (sub l ltac:(left; reflexivity))).
     transitivity (inb l ls2); auto.
   Qed.

LambdaCalc.v

@@ -247,7 +247,7 @@ Module LambdaCalc <: Expression.
   | appArgStep : forall e1 e2 e2' : Expr,
       LCStep e2 e2'
       -> LCStep (app e1 e2) (app e1 e2').
-  Hint Constructors LCStep : LC.
+  Global Hint Constructors LCStep : LC.
   Definition ExprStep := LCStep.
 
   Theorem ExprClosedBelowSubst : forall (e : Expr) (σ : nat -> Expr) (n : nat),

STLC.v

@@ -40,7 +40,7 @@ Module STLC <: (TypedExpression LambdaCalc).
              end) ⊢e e ::: τ2
       -> Γ ⊢e (abs τ1 e) ::: (ArrowT τ1 τ2)
   where "Γ ⊢e e ::: τ" := (LCTyping Γ e τ).
-  Hint Constructors LCTyping : LC.
+  Global Hint Constructors LCTyping : LC.
   Definition ExprTyping := LCTyping.
   Definition ExprVarTyping := varTyping.