symfony/symfony — pull request #10863 by artursvonda (2014-05-07 09:10:07+00:00)
Title: [Security] Add check for supported attributes in AclVoter

```
| Q | A
| ------------- | ---
| Bug fix? | yes
| New feature? | no
| BC breaks? | no
| Deprecations? | no
| Tests pass? | no
| Fixed tickets |
| License | MIT
| Doc PR |
```

Couldn't get the tests to pass but the issues where unrelated to change.

This fixes issues with Attribute containing ExpressionLanguage instance when using allow_if.