Should `bidirectionalMap.set(-0, -0).entries().next().value` be `[0, -0]` (current behavior) or `[0, 0]`?

Should `bidirectionalMap.set(-0, -0).entries().next().value` give `[0, -0]` (the current behavior) or `[0, 0]`?

Assuming `BidirectionalMap` is supposed to be "symmetrical" and that `values()` can logically be understood as getting the keys of the internal reverse-map, presumably `-0` values should be normalized to `0` upon setting, as `-0` can't exist as a key due to [`CanonicalizeKeyedCollectionKey`](https://tc39.es/ecma262/multipage/keyed-collections.html#sec-canonicalizekeyedcollectionkey).