Guillaume Gomez 6b83013d1f
Rollup merge of #80006 - ssomers:btree_cleanup_6, r=Mark-Simulacrum
BTreeMap: more expressive local variables in merge

r? ```````@Mark-Simulacrum```````
2020-12-17 11:36:47 +01:00
..
2020-09-29 21:39:24 +08:00