Fix the Acl schema generator script.

Change 3e818846 in doctrine/dbal introduced a number of new classes in
the Doctrine\DBAL\Platforms\Keywords namespace, so we need to be more
careful here when generating Acl schema, so as to only load Platform
classes and not any others in the same directory.

src/Symfony/Component/Security/Acl/Resources/bin/generateSql.php

@@ -27,7 +27,7 @@ $schema = new Schema(array(
 
 $reflection = new ReflectionClass('Doctrine\\DBAL\\Platforms\\AbstractPlatform');
 $finder = new Finder();
-$finder->name('*.php')->in(dirname($reflection->getFileName()));
+$finder->name('*Platform.php')->in(dirname($reflection->getFileName()));
 foreach ($finder as $file) {
     require_once $file->getPathName();
     $className = 'Doctrine\\DBAL\\Platforms\\' . $file->getBasename('.php');