DDC-1953: [GH-412] [DDC-1872] add tests to evaluate annotations overrides with traits

[doctrinebot]

Jira issue originally created by user @beberlei:

This issue is created automatically through a Github pull request on behalf of cordoval:

Url: #412

Message:

WIP RFC

please let me know if this is ok and i just need to move the classes to the DDC-1872 folders

now I will work on the tutorial for the documentation

[doctrinebot]

Comment created by @beberlei:

A related Github Pull-Request [GH-412] was closed
#412

[doctrinebot]

Issue was closed with resolution "Can't Fix"

[doctrinebot]

Comment created by @beberlei:

A related Github Pull-Request [GH-414] was opened
#414

[doctrinebot]

Comment created by @doctrinebot:

A related Github Pull-Request [GH-412] was closed:
doctrine/dbal#412

[doctrinebot]

Comment created by @doctrinebot:

A related Github Pull-Request [GH-414] was closed:
doctrine/dbal#414