bug #18354 [FrameworkBundle][TwigBridge] fix high deps tests (xabbuh)

This PR was merged into the 2.7 branch.

Discussion
----------

[FrameworkBundle][TwigBridge] fix high deps tests

| Q             | A
| ------------- | ---
| Branch?       | 2.7
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        |

Commits
-------

aa4dd4f fix high deps tests

src/Symfony/Bridge/Twig/Resources/views/Form/form_div_layout.html.twig

@@ -314,10 +314,10 @@
 
 {%- block widget_attributes -%}
     id="{{ id }}" name="{{ full_name }}"
-    {%- if read_only and attr.readonly is not defined %} readonly="readonly"{% endif -%}
+    {%- if read_only %} readonly="readonly"{% endif -%}
     {%- if disabled %} disabled="disabled"{% endif -%}
     {%- if required %} required="required"{% endif -%}
-    {%- for attrname, attrvalue in attr -%}
+    {%- for attrname, attrvalue in attr if 'readonly' != attrname or not read_only -%}
         {{- " " -}}
         {%- if attrname in ['placeholder', 'title'] -%}
             {{- attrname }}="{{ attrvalue|trans({}, translation_domain) }}"

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

@@ -1,7 +1,8 @@
-id="<?php echo $view->escape($id) ?>" name="<?php echo $view->escape($full_name) ?>" <?php if ($read_only && !isset($attr['readonly'])): ?>readonly="readonly" <?php endif ?>
+id="<?php echo $view->escape($id) ?>" name="<?php echo $view->escape($full_name) ?>" <?php if ($read_only): ?>readonly="readonly" <?php endif ?>
 <?php if ($disabled): ?>disabled="disabled" <?php endif ?>
 <?php if ($required): ?>required="required" <?php endif ?>
 <?php foreach ($attr as $k => $v): ?>
+<?php if ('readonly' === $k && $read_only): continue; endif ?>
 <?php if (in_array($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): ?>