Auto merge of #96933 - ehuss:update-books, r=ehuss

Update books

## nomicon

9 commits in c7d8467ca9158da58ef295ae65dbf00a308752d9..10d40c59a581c66d8ecd29ad18d410bf97ed524d
2022-04-06 14:26:54 +0900 to 2022-05-07 10:45:07 +0900
- Introducing init/uninit before its use (rust-lang/nomicon#355)
- Change will to would to discuss what don't occur (rust-lang/nomicon#361)
- State that pop for length 1 is an example (rust-lang/nomicon#360)
- Correct a sentence that didn't seem to be proper (rust-lang/nomicon#358)
- Indicate that C reference are C reference (rust-lang/nomicon#357)
- Introduce and avoid dropck (rust-lang/nomicon#353)
- Rephrase improperly reduced borrows introduction (rust-lang/nomicon#352)
- Two lifetime clarification (rust-lang/nomicon#350)
- "UB" vs "Undefined Behavior" (rust-lang/nomicon#349)

## reference

9 commits in b5f6c2362baf932db9440fbfcb509b309237ee85..8e36971959ff238b5aa2575fbc7a2e09e1313e82
2022-04-10 19:19:51 -0700 to 2022-05-09 17:20:59 -0700
- Stop saying that const functions cannot use 'extern' (rust-lang/reference#1207)
- Moved the option variant imports (rust-lang/reference#1208)
- #[must_use] on traits also affects trait objects (rust-lang/reference#1203)
- Don't use PathPattern in RangePattern bounds (rust-lang/reference#1204)
- Inline assembly: Add kreg0 register class (rust-lang/reference#1205)
- Fix crate_type attribute examples (rust-lang/reference#1201)
- Say that that the default function return type is the unit type (rust-lang/reference#1199)
- Clarify guarantees provided by repr(packed) (rust-lang/reference#1163)
- Document the Termination trait for main() and test functions (rust-lang/reference#1194)

## book

43 commits in de0dbffc5812fd885700874e8d258dd334733ac4..d9415b7cbfcb4b24062683f429bd0ff535396362
2022-04-18 19:29:45 -0400 to 2022-05-09 09:10:44 -0400
- Update ch09-02-recoverable-errors-with-result.md
- Added missing be 2
- Added missing be
- Move hardcoded string into status_line to be consistent
- Fix trailing space
- Propagate tech review edits back to src
- Change "semantics" to "mechanics"; when referring to compiler behavior, rather than syntax.
- Propagate some edits to ch4 snapshot
- Suggestions from tech review
- Propagate edits to src
- Propagate edits back to nostarch version
- Clarify sentences about lock types. Fixes rust-lang/book#2937.
- Edits to edits to chapter 16
- Edits from nostarch for chapter 16
- Propagate nostarch edits back to src
- Add words to dictionary
- Propagating edits back to the nostarch snapshot
- Small wording change. Fixes rust-lang/book#3112.
- Clarify the kind of manual cleanup meant here
- Edits to edits to chapter 15
- Edits from nostarch
- Add missing word
- Improve sentence structure
- fix unidiomatic new functions in chapter 15
- Propagate nostarch ch14 to src
- Update a link and the -p publishing instructions
- Actually, I don't think we need to show the command output here
- Edits to edits to chapter 14
- Update manual regeneration instructions
- Reflect the addition of the -p flag in Cargo 1.56 in chapter 14
- Change polarity and names of variables in env var section
- Propagate nostarch edits back to ch 12
- Change environment variable and field name to perhaps be less confusing
- Responses to nostarch edits
- Merge remote-tracking branch 'origin/ch13'
- Fix rust-lang/book#3002 use noplayground with common.rs
- Propagate ch3 edits to src
- Updating chapter 3 to use new println style
- Specify loop label format. Fixes rust-lang/book#3105.
- Clarify function definition must be in an accessible scope. Fixes rust-lang/book#3003
- Addressing tech review comments, propagating other changes
- Comments from tech review
- Chapter 3, section 2 - Add explicit type annotation to example of scalar type char.

## rust-by-example

6 commits in 44a80e8d8bfc5881c9bd69a2cb3a570776ee4181..e9f93cfcf410bc092c9107b8a41a82f144c761f2
2022-04-19 07:46:28 -0300 to 2022-05-08 18:24:06 -0300
- Add empty slice example (rust-lang/rust-by-example#1538)
- Enhancement/print (rust-lang/rust-by-example#1536)
- Update cast.md (rust-lang/rust-by-example#1521)
- Update iter_any.md (rust-lang/rust-by-example#1522)
- Update tuples.md (rust-lang/rust-by-example#1524)
- fix indent in fs.md (rust-lang/rust-by-example#1535)

## rustc-dev-guide

8 commits in 043e60f4f191651e9f8bf52fa32df14defbb23d9..0c02acdb6f48f03907a02ea8e537c3272b4fde9f
2022-04-20 18:57:49 +0900 to 2022-05-10 09:45:31 -0300
- Update overview.md (rust-lang/rustc-dev-guide#1351)
- Update date references on parallel-rustc (rust-lang/rustc-dev-guide#1348)
- mention `WithOptConstParam` (rust-lang/rustc-dev-guide#1346)
- Fix format (rust-lang/rustc-dev-guide#1349)
- correct type of SubstsRef (rust-lang/rustc-dev-guide#1347)
- Document ErrorGuaranteed (rust-lang/rustc-dev-guide#1316)
- Edit "What the compiler does to your code" (rust-lang/rustc-dev-guide#1306)
- Update some date refs