Rollup of 7 pull requests#69833

Merged

bors merged 18 commits intorust-lang:masterfrom

Centril:rollup-mh74yue

Mar 9, 2020

Commits on Feb 13, 2020

Don't give invalid suggestion on desugared span.
spunit262
committed

Commits on Mar 1, 2020

Commits on Mar 5, 2020

Commits on Mar 7, 2020

Commits on Mar 8, 2020