2229: Support migration via rustfix#83757

Merged

bors merged 6 commits intorust-lang:masterfrom

sexxi-goose:migrations_out

Apr 2, 2021

Commits on Mar 29, 2021

2229: Produce a rustfix migration suggestion
arora-aman
committed

Commits on Mar 31, 2021

Handle the case of partially captured drop type
arora-aman
committed

Commits on Apr 1, 2021

Commits on Apr 2, 2021