Make the tests stanza use named deps

Signed-off-by: Rudi Grinberg <rudi.grinberg@gmail.com>

src/gen_rules.ml

@@ -976,7 +976,7 @@ module Gen(P : Install_rules.Params) = struct
       let rule =
         { Rule.
           targets = Infer
-        ; deps = []
+        ; deps = Named.empty
         ; action =
             (loc, Action.Unexpanded.Redirect (Stdout, diff.file2, run_action))
         ; mode = Standard

src/jbuild.ml

@@ -1420,7 +1420,7 @@ module Tests = struct
     { exes    : Executables.t
     ; locks   : String_with_vars.t list
     ; package : Package.t option
-    ; deps    : Dep_conf.t list
+    ; deps    : Dep_conf.t Named.t
     }
 
   let gen_parse names =
@@ -1428,7 +1428,7 @@ module Tests = struct
       (Buildable.t                                         >>= fun buildable ->
        field_oslu "link_flags"                             >>= fun link_flags ->
        names                                               >>= fun names ->
-       field "deps" (list Dep_conf.t) ~default:[]          >>= fun deps ->
+       field "deps" Dep_conf.bindings ~default:Named.empty >>= fun deps ->
        field_o "package" Pkg.t                             >>= fun package ->
        field "locks" (list String_with_vars.t) ~default:[] >>= fun locks ->
        field "modes" Executables.Link_mode.Set.t

src/jbuild.mli

@@ -87,6 +87,8 @@ module Named : sig
     ; unnamed : 'a list
     }
 
+  val empty : 'a t
+
   val sexp_of_t : ('a -> Usexp.t) -> 'a t -> Usexp.t
 end
 
@@ -359,7 +361,7 @@ module Tests : sig
     { exes    : Executables.t
     ; locks   : String_with_vars.t list
     ; package : Package.t option
-    ; deps    : Dep_conf.t list
+    ; deps    : Dep_conf.t Named.t
     }
 end