--- /dev/null
+--TEST--
+Twig allows to use named operators as variable names
+--TEMPLATE--
+{% for match in matches %}
+ {{- match }}
+{% endfor %}
+{{ in }}
+{{ is }}
+--DATA--
+return array('matches' => array(1, 2, 3), 'in' => 'in', 'is' => 'is')
+--EXPECT--
+1
+2
+3
+in
+is