Renaming an input class or struct to a Chooser breaks evaluation of EvaluateChooser node

The evaluate chooser node generates input pin names based on the parameter class / struct names. When that class or struct's name is changed, the pin doesn't update to account for that and so we silently fail to evaluate fail to evaluate that parameter.

1. open the attached project
2. open ABP_OrphanedPinTest (in developer folder)
3. note how the run animation is playing in the anim bp editor preview viewport
4. rename UDS_OrphanedPinTest to something else
5. reopen the anim bp and recompile
6. note how we're now playing the walk animation