Add missing translation_domain key from template

Resources/views/Form/silex_form_div_layout.html.twig

@@ -16,7 +16,7 @@
     {% else %}
     <select {{ block('widget_attributes') }}{% if multiple %} multiple="multiple"{% endif %}>
         {% if empty_value is not none %}
-            <option value="">{{ empty_value|trans }}</option>
+            <option value="">{{ empty_value|trans({}, translation_domain) }}</option>
         {% endif %}
         {% if preferred_choices|length > 0 %}
             {% set options = preferred_choices %}
@@ -53,11 +53,11 @@
         <label{% for attrname,attrvalue in attr %} {{attrname}}="{{attrvalue}}"{% endfor %}>
             {{ widget|raw }}
             <span>
-                {{ label|trans }}
+                {{ label|trans({}, translation_domain) }}
             </span>
         </label>
     {% else %}
-        <label{% for attrname,attrvalue in attr %} {{attrname}}="{{attrvalue}}"{% endfor %}>{{ label|trans }}</label>
+        <label{% for attrname,attrvalue in attr %} {{attrname}}="{{attrvalue}}"{% endfor %}>{{ label|trans({}, translation_domain) }}</label>
     {% endif %}
 {% endspaceless %}
 {% endblock %}