Add support for Slim framework syntax and "use" keyword

Slim frame work provides a USE keyword that allows to handle more parameters passed.
example code below

$prop = new stdClass();
$prop->hospital = new Hospital();
$prop->sanitize = new Sanitize();
$prop->validator = new Validator();

$app->get("/route/:id", function($id) use($prop){
      //variable $id is accessible, but is not autosuggested.
      //variable $prop is accessible
});

with Komodo, the parameter within last closing braces use($prop){} is only suggested.
$id is not.

Thanks for the suggestion - I’ve opened an enhancement request for it here: https://github.com/Komodo/KomodoEdit/issues/330

Note this is a PHP feature, not specific to Slim.