PSR-2 Fixes

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | N/A
| License       | MIT
| Doc PR        | N/A

##### This pull request brings symfony 2.3 back inline with PSR-2.
This file and the following ones are generated by Symfony, so tests will broke. This must be reverted.