Fix TypeMapper UseReference not used when mapping a GenericType

[desjoerd]

When using Generic TypeMappers the UseReference property was not used. This causes problems when using primitives (and string) which do not use references.

fixes #1302
fixes #1046

[desjoerd]

It should also fix #1046

[desjoerd]

Please let me know if you want me to fix anything, I was doubting a bit on the test, on whether it's clear enough.

[desjoerd]

@RicoSuter did you have time to take a look at this? Let me know if I need to change anything or add more unit tests 🙂

[desjoerd]

I was reviewing my code and I had some weird changes in the unit test. I fixed those. Hopefully it's now good to merge 👍

[desjoerd]

@lahma was this #1766 the problem with the build?

[lahma]

Yes I believe so. Full framework expected mono to be installed and it is not in new ubuntu 24.04 runners.

[desjoerd]

Can you requeue the checks? Because I don't see the option. It would be really nice to have this PR merged, and maybe released together with the package updates.

[lahma]

If you merge latest master to this branch there's a chance for build to succeed.

[desjoerd]

I rebased, but github doesn't queue the PR build automatically. The workflow is awaiting approval.

[lahma]

Thank you.