bug symfony#20934 [FrameworkBundle] Fix PHP form templates on translatable attributes (ro0NL)

This PR was merged into the 2.7 branch.

Discussion
----------

[FrameworkBundle] Fix PHP form templates on translatable attributes

| Q             | A
| ------------- | ---
| Branch?       | 2.7
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | symfony#20365 (comment)
| License       | MIT
| Doc PR        | symfony/symfony-docs#... <!--highly recommended for new features-->

Separated from symfony#20365

Commits
-------

10806e0 [FrameworkBundle] Fix PHP form templates on translatable attributes

Author: fabpot

src/Symfony/Bundle/FrameworkBundle/Resources/views/Form/button_attributes.html.php

@@ -1,6 +1,6 @@
 id="<?php echo $view->escape($id) ?>" name="<?php echo $view->escape($full_name) ?>" <?php if ($disabled): ?>disabled="disabled" <?php endif ?>
 <?php foreach ($attr as $k => $v): ?>
-<?php if (in_array($v, array('placeholder', 'title'), true)): ?>
+<?php if (in_array($k, array('placeholder', 'title'), true)): ?>
 <?php printf('%s="%s" ', $view->escape($k), $view->escape($view['translator']->trans($v, array(), $translation_domain))) ?>
 <?php elseif ($v === true): ?>
 <?php printf('%s="%s" ', $view->escape($k), $view->escape($k)) ?>

src/Symfony/Bundle/FrameworkBundle/Resources/views/Form/widget_container_attributes.html.php

@@ -1,6 +1,6 @@
 <?php if (!empty($id)): ?>id="<?php echo $view->escape($id) ?>" <?php endif ?>
 <?php foreach ($attr as $k => $v): ?>
-<?php if (in_array($v, array('placeholder', 'title'), true)): ?>
+<?php if (in_array($k, array('placeholder', 'title'), true)): ?>
 <?php printf('%s="%s" ', $view->escape($k), $view->escape($view['translator']->trans($v, array(), $translation_domain))) ?>
 <?php elseif ($v === true): ?>
 <?php printf('%s="%s" ', $view->escape($k), $view->escape($k)) ?>