In particular:
  - `unwrap_unchecked()` for `Option`.
  - `unwrap_unchecked()` and `unwrap_err_unchecked()` for `Result`.

These complement other `*_unchecked()` methods in `core` etc.

Currently there are a couple of places it may be used inside rustc
(`LinkedList`, `BTree`). It is also easy to find other repositories
with similar functionality.

Fixes rust-lang#48278.

Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

Apparently `tidy` has a hard limit of 2830 tests in the
`src/test/ui/issues/` directory, and this test hit that limit.

`src/test/ui/consts/` is probably a better location anyway.

… order

I have trouble parsing the the wording "type parameter parameter".

…ntry

Use elapsed wall time spent on codegen_to_LLVM_IR for all CGUs as a
whole, rather than the sum for each CGU (the distinction matters for
parallel builds, where some CGUs are processed in parallel).

Fix rust-lang#81175.

Suggested-by: Mara Bos <m-ou.se@m-ou.se>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

The cargo check was checking that every dependency had an `extern crate`.
The compiler has not used `extern crate` in a long time (edition 2018).
The test was broken (the call to `!super::filter_dirs(path)` was backwards).
This just removes it since it is no longer valid.

These exceptions are no longer necessary.

This will cause a failure due to the warning after the next beta branch
as rust-lang#79812 will hit beta.

Converting LHS of an assignment does not work, so avoid suggesting that.

Fixes rust-lang#81293

Don't suggest it if the last statement doesn't have a semicolon

Fixes rust-lang#81098

See also rust-lang#54771 for why this suggestion was added

…rrays

…imulacrum

Update RELEASES.md for 1.50.0

### [Rendered](https://github.com/rust-lang/rust/blob/relnotes-1.50.0/RELEASES.md)

r? `@Mark-Simulacrum`
cc `@rust-lang/release`

…d, r=m-ou-se

Add `unwrap_unchecked()` methods for `Option` and `Result`

In particular:
  - `unwrap_unchecked()` for `Option`.
  - `unwrap_unchecked()` and `unwrap_err_unchecked()` for `Result`.

These complement other `*_unchecked()` methods in `core` etc.

Currently there are a couple of places it may be used inside rustc (`LinkedList`, `BTree`). It is also easy to find other repositories with similar functionality.

Fixes rust-lang#48278.

…li-obk

Fix ICE with `ReadPointerAsBytes` validation error

Fixes rust-lang#79690.

r? ``````@oli-obk``````

…ark-Simulacrum

BTreeMap: test all borrowing interfaces and test more chaotic order behavior

Inspired by rust-lang#81169, test what happens if you mess up order of the type with which you search (as opposed to the key type).

r? `@Mark-Simulacrum`

…h-params, r=oli-obk

Account for generics when suggesting bound

Fix rust-lang#81175.

…bugs, r=Nemo157

Fix some bugs reported by eslint

Simply went into `src/librustdoc/html/static/` and ran `eslint *.js` in case you want to reproduce. :)

r? ``````@Nemo157``````

typeck: Don't suggest converting LHS exprs

Converting LHS of an assignment does not work, so avoid suggesting that.

Fixes rust-lang#81293

…chenkov

Fix spelling in documentation for error E0207

I have trouble parsing the the wording "type parameter parameter".

…l-time, r=lcnr

rustc_codegen_ssa: use wall time for codegen_to_LLVM_IR time-passes entry

Use elapsed wall time spent on codegen_to_LLVM_IR for all CGUs as a
whole, rather than the sum for each CGU (the distinction matters for
parallel builds, where some CGUs are processed in parallel).

…uillaumeGomez

rustdoc: Document CommonMark extensions.

This updates the rustdoc book to include some documentation on the CommonMark extensions that rustdoc supports.

Update books

## nomicon

7 commits in a8584998eacdea7106a1dfafcbf6c1c06fcdf925..bbf06ad39d1f45654047e9596b750cc6e6d1b693
2021-01-06 12:49:49 -0500 to 2021-01-22 07:07:31 -0800
- Fix alloc link in exotic-sizes for local docs (rust-lang/nomicon#255)
- Remove TODO
- Fix small punctuation error
- Arc revisions (Clone atomic explanation) (pt2/3(+?))
- Fix Arc Clone
- Arc revisions (pt1/2(+?))
- Simple Arc implementation (without Weak refs)

## reference

5 commits in 50af691f838937c300b47812d0507c6d88c14f97..f02b09eb6e8af340ad1256a54adb7aae2ff3163e
2021-01-12 21:19:20 -0800 to 2021-01-22 01:53:02 -0800
- Fix missing space (rust-lang/reference#941)
- Start documenting name resolution. (rust-lang/reference#937)
- Fix plural and delete spurious words in comparison ops (rust-lang/reference#932)
- Document execution order (rust-lang/reference#888)
- Compound operator expressions (rust-lang/reference#915)

## book

3 commits in ac57a0ddd23d173b26731ccf939f3ba729753275..e724bd826580ff95df48a8533af7dec1080693d4
2021-01-09 14:18:45 -0500 to 2021-01-20 08:19:49 -0600
- Fixes rust-lang/book#2417. Get the index from user input instead of a const. (rust-lang/book#2566)
- Turn off the playground in a bunch more lib.rs inclusions (rust-lang/book#2569)
- Merge pull request rust-lang/book#2567 from rust-lang/rust-1.49

## rust-by-example

1 commits in 03e23af01f0b4f83a3a513da280e1ca92587f2ec..f633769acef68574427a6fae6c06f13bc2199573
2021-01-09 10:20:28 -0300 to 2021-01-13 20:58:25 -0300
- Fixed styling on closure example (rust-lang/rust-by-example#1405)

tidy: Some code cleanup.

This is just some cleanup that shouldn't have any change in behavior.  (See commit messages for more details.)

* Remove cargo check. This test wasn't working, and is no longer valid.
* Remove edition filter exceptions. They are no longer necessary.
* Remove unnecessary trailing semicolon.  Otherwise the warning will prevent tidy from building after the beta branch.

Refine "remove semicolon" suggestion in trait selection

Don't suggest it if the last statement doesn't have a semicolon

Fixes rust-lang#81098

See also rust-lang#54771 for why this suggestion was added

…ertion, r=m-ou-se

Fix assertion in `MaybeUninit::array_assume_init()` for zero-length arrays

That assertion has a false positive ([playground](https://play.rust-lang.org/?version=nightly&mode=debug&edition=2018&gist=63922b8c897b04112adcdf346deb1d0e)):
```rust
#![feature(maybe_uninit_array_assume_init)]

use std::mem::MaybeUninit;

enum Uninhabited {}

fn main() {
    unsafe {
        // thread 'main' panicked at 'attempted to instantiate uninhabited type `Uninhabited`'
        MaybeUninit::<Uninhabited>::array_assume_init([]);
    }
}
```
*Previously reported in rust-lang#80600 (comment)

This PR makes it ignore zero-length arrays.

cc rust-lang#80908