* lang_php/parsing/parser_php.mly: estet
* project.el: misc
[spatch] support nested XHP patterns transfo

Summary:
I added support for nested XHP patterns in sgrep 3 years ago
but forgot to do the similar thing for spatch ...

Test Plan:
unit test included

also
~/pfff/spatch  -f test3.spatch ~/www/flib/site/x/profile/timeline/picture/XProfilePictureRemoveDialogController.php

           {$description}
         </xui:dialog:body>
         <xui:dialog:footer>
-          <xui:dialog:confirm-button />
           <xui:dialog:cancel-button />
         </xui:dialog:footer>
       </xui:dialog>;

Reviewers: jcreed, pieter

Reviewed By: pieter

Subscribers: azich, ngao

Differential Revision: https://phabricator.fb.com/D1404468