Rollup of 8 pull requests#78562

Merged

bors merged 20 commits intorust-lang:masterfrom

JohnTitor:rollup-otg906u

Oct 30, 2020

Commits on Sep 29, 2020

Reorder benches const variable
pickfire
authored

Commits on Oct 13, 2020

Refactor collapsible_if
wcampbell0x2a
committed

Commits on Oct 14, 2020

Simplify a nested bool match
LingMan
committed

Commits on Oct 30, 2020