Add missing cases unreached from the default test target

Author: voodoos

Diff for: middle_end/flambda2/tests/api_tests/extension_meet.ml

@@ -188,5 +188,5 @@ let _ =
     let linkage_name = Compilation_unit.Name.of_string "camlTest" in
     Compilation_unit.create Compilation_unit.Prefix.empty linkage_name
   in
-  Compilation_unit.set_current (Some comp_unit);
+  Compilation_unit.set_current (Some comp_unit, Impl);
   test_double_recursion ()

Diff for: middle_end/flambda2/tests/meet_test.ml

@@ -260,7 +260,7 @@ let test_meet_bottom_after_alias () =
 
 let () =
   let comp_unit = "Meet_test" |> Compilation_unit.of_string in
-  Compilation_unit.set_current (Some comp_unit);
+  Compilation_unit.set_current (Some comp_unit, Impl);
   Format.eprintf "MEET CHAINS WITH TWO VARS@\n@.";
   test_meet_chains_two_vars ();
   Format.eprintf "@.MEET CHAINS WITH THREE VARS@\n@.";

Diff for: middle_end/flambda2/tests/tools/fldiff.ml

@@ -9,7 +9,7 @@ let _ =
     let modname1 =
       Parse_flambda.make_compilation_unit ~filename:file1 ~extension:".fl" ()
     in
-    Compilation_unit.set_current (Some modname1);
+    Compilation_unit.set_current (Some (modname1, Impl));
     Format.printf "%a@."
       (Compare.Comparison.print Flambda_unit.print)
       (Compare.flambda_units unit1 unit2)

Diff for: middle_end/flambda2/tests/tools/flexpect.ml

@@ -35,7 +35,7 @@ end
 let run_expect_test ~get_module_info ~extension ~filename
     ({ before; after = expected } : Fexpr.expect_test_spec) : Test_outcome.t =
   let comp_unit = Parse_flambda.make_compilation_unit ~extension ~filename () in
-  Compilation_unit.set_current (Some comp_unit);
+  Compilation_unit.set_current (Some (comp_unit, Impl));
   let before_fl = Fexpr_to_flambda.conv comp_unit before in
   check_invariants before_fl;
   let cmx_loader = Flambda_cmx.create_loader ~get_module_info in

Diff for: middle_end/flambda2/tests/tools/parseflambda.ml

@@ -15,7 +15,7 @@ let parse_flambda filename =
     let comp_unit =
       Parse_flambda.make_compilation_unit ~extension:".fl" ~filename ()
     in
-    Compilation_unit.set_current comp_unit;
+    Compilation_unit.set_current (comp_unit, Impl);
     Format.printf "%a@.@." Print_fexpr.flambda_unit unit;
     let fl2 = Fexpr_to_flambda.conv comp_unit unit in
     Format.printf "flambda:@.%a@.@." Flambda_unit.print fl2;

Diff for: middle_end/flambda2/tests/tools/roundtrip.ml

@@ -30,7 +30,7 @@ let () =
     in
     (* Need to get this right or the conversion will complain about binding
        non-local symbols *)
-    Compilation_unit.set_current (Some modname);
+    Compilation_unit.set_current (Some (modname, Impl));
     let unit =
       match Parse_flambda.parse file with
       | Ok unit -> unit