* `mob_transformation_simple` sends a `COMSIG_MOB_CHANGED_TYPE` signal, letting `content_barfer` mobs spit things out (#78093)
## About The Pull Request
Title; also makes bileworm devour message have a warning span.
~~it's a bit cheeky but i didn't want to add a deletion signal to the
content_barfer's signal list, and the wabbajack signal here kinda makes
sense?~~
## Why It's Good For The Game
Fixes#76791
## Changelog
🆑
fix: fixed bileworm evolution deleting anything they devoured; they will
now eject their contents upon evolution to vileworms
/🆑
* `mob_transformation_simple` sends a `COMSIG_MOB_CHANGED_TYPE` signal, letting `content_barfer` mobs spit things out
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Co-authored-by: Sealed101 <cool.bullseye@yandex.ru>
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