Peter Hawkins 8ab33669e2 Add a variant of safe_map() that has no return value, named foreach().
This avoids a bunch of list bookkeeping in cases where we are iterating only for a side effect and do not care about the results.

I would have named this iter() to match OCaml's list.iter(), but unfortunately iter() is a Python builtin.

PiperOrigin-RevId: 736859418
2025-03-14 07:42:48 -07:00
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