While the numbers are parsed to the correct value, the decimal numbers in the
source were rounded to zero instead of to the nearest, making the literals
different from the values shown in the documentation.

This makes it easier to see that `MatchPair::new` has only one non-recursive
caller, because the recursive callers are all in this module.

…gument_obligation

as requested in rust-lang/blog.rust-lang.org#1358 (comment)

…r=oli-obk

Suggest a borrow when using dbg

Fixes rust-lang#120327
r? ````@estebank````

fix least significant digits of f128 associated constants

While the numbers are parsed to the correct value, the decimal numbers in the source were rounded to zero instead of to the nearest, making the literals different from the values shown in the documentation.

match lowering: Move `MatchPair` tree creation to its own module

This makes it easier to see that `MatchPair::new` has only one non-recursive caller, because the recursive callers are all in this module. No functional changes.

---

I have used `git diff --color-moved` to verify that the moved code is identical to the old code, except for reduced visibility on the helper methods.

Update books

## rust-lang/book

3 commits in f1e49bf7a8ea6c31ce016a52b8a4f6e1ffcfbc64..67fa536768013d9d5a13f3a06790521d511ef711
2024-07-12 21:21:45 UTC to 2024-07-05 17:35:06 UTC

- Use Rust 2021 Edition for mdBook (rust-lang/book#3974)
- Backport changes to chapter 11 (rust-lang/book#3969)
- Upgrade to Rust 1.79.0 (rust-lang/book#3968)

## rust-lang/edition-guide

2 commits in 941db8b3df45fd46cd87b50a5c86714b91dcde9c..5454de3d12b9ccc6375b629cf7ccda8264640aac
2024-07-14 07:06:34 UTC to 2024-07-12 06:05:29 UTC

- Update timeline etc. for Rust 2024
- 2024: Add note about never_type_fallback_flowing_into_unsafe lint level. (rust-lang/edition-guide#311)

## rust-embedded/book

1 commits in b10c6acaf0f43481f6600e95d4b5013446e29f7a..019f3928d8b939ec71b63722dcc2e46330156441
2024-07-11 17:46:10 UTC to 2024-07-11 17:46:10 UTC

- typo on tooling.md (rust-embedded/book#373)

## rust-lang/reference

9 commits in 1ae3deebc3ac16e276b6558e01420f8e605def08..e2f0bdc4031866734661dcdb548184bde1450baf
2024-06-29 16:59:51 +0000 to 2024-07-15 17:52:44 +0000

- Suppress type length limit test and note that it is not enforced (rust-lang/reference#1527)
- elaborate on slice wide pointer metadata (rust-lang/reference#1499)
- '.inst' in inline-assembly changed to '.insn' (rust-lang/reference#1453)
- Clarify that `asm!` blocks can be duplicated or deduplicated by the compiler (rust-lang/reference#1441)
- Add mdbook-spec (rust-lang/reference#1520)
- Add note about static libraries not linking their dependencies (rust-lang/reference#1472)
- more explicitly explain the UB around immutable extern statics (rust-lang/reference#1502)
- Improvements to `items/functions.md` (rust-lang/reference#1458)
- Enable mdbook smart-punctuation. (rust-lang/reference#1516)

## rust-lang/rust-by-example

1 commits in 658c6c27cb975b92227936024816986c2d3716fb..89aecb6951b77bc746da73df8c9f2b2ceaad494a
2024-07-11 12:33:43 UTC to 2024-07-11 12:33:43 UTC

- Update option_result.md (rust-lang/rust-by-example#1864)

## rust-lang/rustc-dev-guide

6 commits in d6e3a32a557db5902e714604def8015d6bb7e0f7..0c4d55cb59fe440d1a630e4e5774d043968edb3f
2024-07-15 15:16:43 UTC to 2024-07-01 19:05:14 UTC

- Improve documentation of MIR queries & passes (rust-lang/rustc-dev-guide#1434)
- Bump dependencies for date-check tool (rust-lang/rustc-dev-guide#2012)
- Fix typo: lists -> lints (rust-lang/rustc-dev-guide#2011)
- use "bootstrap" instead of "rustbuild" (rust-lang/rustc-dev-guide#2010)
- Fix grammar issue in optimize-build.md (rust-lang/rustc-dev-guide#2009)
- Update name of Fuchsia builder (rust-lang/rustc-dev-guide#2008)

Make sure trait def ids match before zipping args in `note_function_argument_obligation`

Fixes rust-lang#126416
Fixes rust-lang#127745

Didn't add both tests b/c I felt like it was unnecessary.

Fix typos in RELEASES.md

as requested in rust-lang/blog.rust-lang.org#1358 (comment)

r? `@cuviper`