Rollup of 7 pull requests - #68506

Merged

bors merged 16 commits into

rust-lang:masterfrom

tmandry:rollup-kz9d33v

Jan 24, 2020

Commits on Jan 21, 2020

Suggest borrowing `Vec<NonCopy>` in for loop
estebank
committed
c775927
Account for non-types in substs for opaque type error messages
Aaron1011
committed
4ee4287

Commits on Jan 22, 2020

Avoid overflow in `std::iter::Skip::count`
ollie27
committed
9d3e844
Enable ASan on Fuchsia
nopsledder
committed
4210409
Fix tidy warnings
nopsledder
committed
192650a

Commits on Jan 23, 2020

unused-parens: implement for block return values
Tyg13
committed
6f7e89f
Add my (@flip1995) name to .mailmap
flip1995
committed
06064b9
use `diagnostic_item` and modify wording
estebank
committed
6eaf59d

Commits on Jan 24, 2020