Avoid polymorphic equality

Author: jmid

src/floatarray/stm_tests.ml

@@ -125,7 +125,7 @@ struct
       if i < 0 || l < 0 || i+l > List.length s
       then r = Error (Invalid_argument "Float.Array.fill")
       else r = Ok ()
-    | To_list, Res ((List Float,_),fs) -> fs = s
+    | To_list, Res ((List Float,_),fs) -> List.equal Float.equal fs s
     | Mem f, Res ((Bool,_),r) -> r = List.mem f s
     | Sort, Res ((Unit,_),r) -> r = ()
     | To_seq, Res ((Seq Float,_),r) -> Seq.equal (=) r (List.to_seq s)