symfony/symfony — pull request #9814 by florianv (2013-12-18 15:08:30+00:00)
Title: [EventDispatcher] Added TraceableEventDispatcher from HttpKernel

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

Moved the reusable parts from the `TraceableEventDispatcher` from `HttpKernel` to the same class in `EventDispatcher` to allow debugging dispatchers.

I changed the `TraceableEventDispatcherInterface` to extend `EventDispatcherInterface`, so this is a BC break but I'm not sure if a lot of people use it without actually extending it.