help: fix: always create new type reference for primitive type

[pvojtechovsky]

The type references to primitive types like void sometime copied the source position from another type reference. See test for details.

[pvojtechovsky]

This PR actually fails on AnnotationTest#testSpoonSpoonResult. I would say that this test is wrong. Hard to say for me what was origin intent.

@surli @monperrus please have a look at it and fix the test or explain me what was the idea, so I can fix it.

[monperrus]

it was a fix, see #970.

however, like you, when looking at the test and the spooned code, it's unclear.

I would suggest to go ahead, change the assertion!(and we'll see if dropwizard fails again, and we'll try to better fix it)

[pvojtechovsky]

I guess the assertion was intended for the annotated field. So I changed it this way.

I am finished here. It is ready for merge from my point of view

[monperrus]

Thanks Pavel.