[Ignition] Skip another failing mjsunittest on ignition.

test/mjsunit/mjsunit.status

 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 868 matching lines @@
   'regress/regress-4255-4': [SKIP],
   'regress/regress-430201': [SKIP],
   'regress/regress-430201b': [SKIP],
   'regress/regress-4309-3': [SKIP],
   'regress/regress-4320': [SKIP],
   'regress/regress-4325': [SKIP],
   'regress/regress-436893': [SKIP],
   'regress/regress-4374': [SKIP],
   'regress/regress-4388': [SKIP],
   'regress/regress-444805': [SKIP],
+  'regress/regress-446389': [SKIP],
   'regress/regress-4515': [SKIP],
   'regress/regress-4521': [SKIP],
   'regress/regress-4525': [SKIP],
   'regress/regress-453481': [SKIP],
   'regress/regress-4534': [SKIP],
   'regress/regress-454725': [SKIP],
   'regress/regress-470804': [SKIP],
   'regress/regress-476488': [SKIP],
   'regress/regress-491536': [SKIP],
   'regress/regress-514362': [SKIP],
@@ skipping 108 matching lines @@
   'undetectable-compare': [SKIP],
   'unused-context-in-with': [SKIP],
   'uri': [SKIP],
   'value-wrapper': [SKIP],
   'with-parameter-access': [SKIP],
   'with-prototype': [SKIP],
   'with-readonly': [SKIP],
 }],  # ignition == True
 
 ]