In Obj, there are now deprecation warnings all over (except on t and magic?)
I use Obj.t as a signifier of “typeless” object references in exceptions regularly. To me, it’s an ergonomic way to store “any value” in a var with some level of correctness (vs. Obj.magic which is basically throwing everything out the window). For debugging purposes, storing Obj.repr(whatever) as the “relevant exception source object” works well.
Apparently Obj.repr is now deprecated. I mean it’s trivial to roll my own, I’m just curious why this was done and if there’s anything else in the stdlib that I could use.