Fix unexpected CommonDBTM::can() $input param-out type

[cedric-anne]

When a parameter is passed by reference, PHPStan assumes that its type can be changed inside the called method to any type allowed by the signature.

Our CommonDBTM::can() and CommonDBTM::check() methods have a ?array &$input = null. PHPStan therefore consider that the $input variable can be changed to either null or an array inside the method. For instance, an error is detected in the following code:

if ($item->can(-1, CREATE, $_POST)) {
    $name = $_POST['name']; // Offset 'name' might not exist on array|null. (offsetAccess.notFound)
}

But the reality is these methods always preserve the passed type. With the proposed CommonDBTMCanInputParamOutTypeResolver extension, we will indicate that the type is preserved during the method execution. On the 11.0/bugfixes branch, it fixes 179 errors.