Find cases where shouldUpdateReactComponent is det

Find cases where shouldUpdateReactComponent is determined by the owner.
You lost an `a`.

Also the scoping of these is weird. I would prefer we define each of these with fallback values and the conditionally set them.

Also also, I *think* (but not completely sure) that `prevElement._owner.getPublicInstance().displayName` should work and might be preferred (I see the use of `getPublicInstance().displayName` elsewhere)