Fix choice translation domain for expanded choice widget

Author: jvasseur

Resources/views/Form/choice_widget_expanded.html.php

@@ -1,6 +1,6 @@
 <div <?php echo $view['form']->block($form, 'widget_container_attributes') ?>>
 <?php foreach ($form as $child): ?>
     <?php echo $view['form']->widget($child) ?>
-    <?php echo $view['form']->label($child) ?>
+    <?php echo $view['form']->label($child, null, array('translation_domain' => $choice_translation_domain)) ?>
 <?php endforeach ?>
 </div>

Resources/views/Form/form_label.html.php

@@ -4,5 +4,5 @@
 <?php if (!$label) { $label = isset($label_format)
     ? strtr($label_format, array('%name%' => $name, '%id%' => $id))
     : $view['form']->humanize($name); } ?>
-<label <?php foreach ($label_attr as $k => $v) { printf('%s="%s" ', $view->escape($k), $view->escape($v)); } ?>><?php echo $view->escape($view['translator']->trans($label, array(), $translation_domain)) ?></label>
+<label <?php foreach ($label_attr as $k => $v) { printf('%s="%s" ', $view->escape($k), $view->escape($v)); } ?>><?php echo $view->escape(false !== $translation_domain ? $view['translator']->trans($label, array(), $translation_domain) : $label) ?></label>
 <?php endif ?>