Dylan DPC 9dbc9ed870 Rollup merge of #77514 - scottmcm:less-once-chain-once, r=estebank ...

Replace some once(x).chain(once(y)) with [x, y] IntoIter

Now that we have by-value array iterators that are [already used](https://github.com/rust-lang/rust/blob/25c8c53dd994acb3f4f7c02fe6bb46076393f8b0/compiler/rustc_hir/src/def.rs#L305-L307)...

For example,
```diff
-        once(self.type_ns).chain(once(self.value_ns)).chain(once(self.macro_ns)).filter_map(|it| it)
+        IntoIter::new([self.type_ns, self.value_ns, self.macro_ns]).filter_map(|it| it)
```

2020-10-05 02:29:42 +02:00

..

benches

Rust vec bench import specific rand::RngCore

2020-09-25 22:19:28 +08:00

src

Rollup merge of #77514 - scottmcm:less-once-chain-once, r=estebank

2020-10-05 02:29:42 +02:00

tests

Rollup merge of #76454 - poliorcetics:ui-to-unit-test-1, r=matklad

2020-09-28 18:39:39 +02:00

Cargo.toml

mv std libs to library/

2020-07-27 19:51:13 -05:00