Rollup of 7 pull requests#88240

Merged

bors merged 15 commits intorust-lang:masterfrom

GuillaumeGomez:rollup-wdom91m

Aug 22, 2021

Commits on Jun 30, 2021

Commits on Jul 28, 2021

Show discriminant before overflow in diagnostic.
de-vri-es
committed

Commits on Aug 16, 2021

Generate an iOS LLVM target with a specific version
kit-981
committed

Commits on Aug 19, 2021

PassWrapper: adapt for LLVM 14 changes
durin42
committed

Commits on Aug 21, 2021

cleanup: `Span::new` -> `Span::with_lo`
petrochenkov
committed

Commits on Aug 22, 2021