title: Symfony2 presenting an array value as a translated text
body: <p>it does not seem possible to use a value i am getting right from an array, as a translated text....so when i have</p>
  
  <pre><code>{% for key,value in ratings %}
  
  &lt;th scope="row"&gt;
     {% trans %}
      {{ value.type }}
      {% endtrans %}&lt;/th&gt;
  &lt;td &gt;&lt;div  class="rating" id= "{{ value.type }}"   data-rating="{{ value.ratingaverage }}"
             thread="{{thread_id}}" rating_readonly= "{{ value.readOnly }}" route="{{ path('addrating') }}"  &gt;&lt;/div&gt; &lt;/td&gt;
  {% endfor %}
  </code></pre>
  
  <p>i get the error</p>
  
  <pre><code>A message must be a simple text in TrackerMembersBundle::rating.html.twig at line 92
  </code></pre>
  
  <p>what is meant here, is the line with</p>
  
  <pre><code>     {% trans %}
      {{ value.type }}
      {% endtrans %}
  </code></pre>
  
  <p>i cannot seem to be able to use trans upon the value coming directly from array? the value would be for example <code>"file.quality"</code></p>
  
  <p></p>