The whole ownership model was getting a bit of a mess, with a some of special cases to deal with. And I'm planning to make it even more complex in the future. So here is some upfront work to convert it over to reference counted pointers.
Texture dumping can already be done using VideoCommon's system (and in fact the same setting already enabled *both* of these). Dumping objects/TEV stages/texture fetches doesn't currently have an equivalent, but could be added to the FIFO player instead.