Sideports a couple of init unit tests from Neb. (#7893)

* Sideports a couple of init unit tests from Neb.

* Trying to unfuck initialize logic.

* Removing del()s.

* Adjusting return values to Initialize().

* Moving some dangerous object logic from obj onto the two types that use it.

* Rolling back some init changes and commenting out initialized atom unit test.

* this comment formatting is a minor war crime

* Removed sleep() from signaler circuit Initialize().

* Additional Init fixes post-rebase.

* Uncomments subsystem test since that's passing.

code/modules/client/preference_setup/traits/trait_defines.dm

@@ -23,6 +23,7 @@
 
 // Physical traits are what they sound like, and involve the character's physical body, as opposed to their mental state.
 /datum/trait/modifier/physical
+	name = "Physical"
 	category = "Physical"
 
 
@@ -194,6 +195,7 @@
 // 'Mental' traits are just those that only sapients can have, for now, and generally involves fears.
 // So far, all of them are just for fluff/don't have mechanical effects.
 /datum/trait/modifier/mental
+	name = "Mental"
 	category = "Mental"
 
 /datum/trait/modifier/mental/test_for_invalidity(var/datum/category_item/player_setup_item/traits/setup)