bug #31459 Fix the interface incompatibility of EventDispatchers (keulinho)
bug #31459 Fix the interface incompatibility of EventDispatchers (keulinho)

This PR was merged into the 4.3 branch.

Discussion
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Fix the interface incompatibility of EventDispatchers

The `LegacyEventDispatcherProxy` now implements the full
`EventDispatcherInterface` from the `EventDispatcherBundle`.
Before it just implemented the Interface from the `Contracts` Bundle,
that made it incompatible with the `WrappedListener`.
This fixes #31457.

| Q             | A
| ------------- | ---
| Branch?       | 4.3
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #31457
| License       | MIT
| Doc PR        | /

Commits
-------

bdeeae1510 Fix the interface incompatibility of EventDispatchers

symfony/EventDispatcher,symfony/event-dispatcher