BTreeMap: split off most code of append#78417
Merged
bors merged 1 commit intorust-lang:masterfrom Nov 12, 2020
ssomers:btree_chop_up_2
Merged
BTreeMap: split off most code of append#78417bors merged 1 commit intorust-lang:masterfrom ssomers:btree_chop_up_2
bors merged 1 commit intorust-lang:masterfrom
ssomers:btree_chop_up_2