visitor: handle ListLiteralNode

Change-Id: Ibe189a701de5efaeec106c5c0336478c2d99b780
Reviewed-on: http://gerrit.aldebaran.lan/44470
Tested-by: rvarannes <rvarannes@aldebaran-robotics.com>
Reviewed-by: cgestes <gestes@aldebaran-robotics.com>
Reviewed-by: rvarannes <rvarannes@aldebaran-robotics.com>
Merge commit 'refs/integration/team/platform/dev-68'