HasOneOrMany wrongly uses TRelatedModel as the type for the declaring model of the relation

[nagmat84]

HasOneOrMany has only a single template parameter TRelatedModel which is bound to the model class which the relation points to. However, HasOneOrMany also uses TRelatedModel as the type for the model class which declares the relation.

https://github.com/nunomaduro/larastan/blob/ccdd599c464f9de6983a8d5e0f36daaf324b646f/stubs/HasOneOrMany.stub#L11-L20

The declaring model model (or parent or owning model) is not the same as the related model.

Originally posted by @nagmat84 in #1275 (comment)