[HttpKernel] fix composer.json

Author: nicolas-grekas

composer.json

@@ -34,15 +34,17 @@
         "symfony/routing": "~2.2",
         "symfony/stopwatch": "~2.2",
         "symfony/templating": "~2.2",
-        "symfony/translator": "~2.0"
+        "symfony/translation": "~2.0",
+        "symfony/var-dumper": "~2.6"
     },
     "suggest": {
         "symfony/browser-kit": "",
         "symfony/class-loader": "",
         "symfony/config": "",
         "symfony/console": "",
         "symfony/dependency-injection": "",
-        "symfony/finder": ""
+        "symfony/finder": "",
+        "symfony/var-dumper": ""
     },
     "autoload": {
         "psr-0": { "Symfony\\Component\\HttpKernel\\": "" }