Add support for Doctrine generated fields

[curry684]

Closes #378

[curry684]

The phpstan error is really interesting as it's comparing this constant:

    public const GENERATED_NEVER = 0;

To this field:

  'generated' =>
  int(2)

So the strict comparison is valid. Would appear to be a typing issue in Doctrine itself.

[ondrejmirtes]

I fixed the local stub + sent PR to Doctrine: doctrine/orm#10144

[ondrejmirtes]

Thank you!

[curry684]

Mmm this broke a lot of stuff, you may want to pull that auto release. Apparently the field mapping in Doctrine can be empty in more cases than triggered by the tests.

[ondrejmirtes]

Mmm this broke a lot of stuff

This isn't useful feedback. Please open an issue and describe what problems do you have.

[curry684]

See #380, weird that tests didn't pick this up, I got 25 internal errors on a local project right after updating.