Yuki Okushi f8bae8b102
Rollup merge of #78056 - ssomers:btree_chop_up_1, r=dtolnay
BTreeMap: split off most code of remove and split_off

Putting map.rs on a diet, in addition to #77851.
r? @dtolnay
2020-10-21 13:59:37 +09:00
..