[DoctrineBridge][UX] Better Doctrine exceptions

[Korbeil]

Q	A
Bug fix?	no
New feature?	yes
BC breaks?	no
Deprecations?	no
Tickets	???
License	MIT
Doc PR	api-platform/docs#...

I had some issues to understand this error with some entities that have a lot of sub-entities. To make this easier to understand, just add the resource to the exception and it became way easier 😄

[alanpoulain]

If possible, can you modify the CHANGELOG too?
It will be merged after the 2.6 release.

[alanpoulain]

It seems test failures are related.

[alanpoulain]

After some thinking, shouldn't we just use:

(new \ReflectionClass($resourceClass))->getShortName();

instead of introducing a new dependency?

[Korbeil]

After some thinking, shouldn't we just use:

(new \ReflectionClass($resourceClass))->getShortName();

instead of introducing a new dependency?

Since we can modify resource short-name, it's possible it won't be the same as given in related resource. I think we need this dependency here.

[alanpoulain]

Thank you @Korbeil.