Add insert().

framework/Refactor/lib/Horde/Refactor/Tokens.php

@@ -375,6 +375,18 @@ public function splice($offset, $length = null, $replacement = array())
         return new self($copy);
     }
 
+    /**
+     * Inserts tokens at the current position.
+     *
+     * @param array $tokens  The tokens to insert.
+     *
+     * @return self  A new iterator with the tokens inserted.
+     */
+    public function insert(array $tokens)
+    {
+        return $this->splice($this->key(), 0, $tokens);
+    }
+
     /**
      * Returns the file code in its current state.
      *