Add missing dependency to expression-language

src/Symfony/Bridge/Doctrine/composer.json

@@ -25,6 +25,7 @@
         "symfony/form": "~2.2",
         "symfony/http-kernel": "~2.2",
         "symfony/security": "~2.2",
+        "symfony/expression-language": "~2.2",
         "symfony/validator": "~2.2",
         "doctrine/data-fixtures": "1.0.*",
         "doctrine/dbal": "~2.2",