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core: add memchr-based single-ascii byte search to str_bytes - #161760

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pacak wants to merge 11 commits into

rust-lang:mainfrom

pacak:push-ptqpwloxpyru

Draft

core: add memchr-based single-ascii byte search to str_bytes#161760
pacak wants to merge 11 commits into
rust-lang:mainfrom
pacak:push-ptqpwloxpyru

Commits on Oct 2, 2026
- core: convert Pattern<'a> into Pattern<H: Haystack>
  pacak
  committed
  27e7424
- core: move Pattern et al to core::pattern module (doesn't compile)
  pacak
  committed
  72f4a17
- core: post move Pattern et al to core::pattern module cleanup
  pacak
  committed
  2db5ecc
- core: introduce internal core::pattern::{Split,SplitN} types
  pacak
  committed
  56efb44
- Revert "Add ByteNeedle search in StrSearcherImpl"
  pacak
  committed
  2967dc2
- core: add core::pattern::EmptyNeedleSearcher internal type
  pacak
  committed
  33e17a7
- core: add try_next_code_point{,_reverse} internal functions
  pacak
  committed
  a4bfe08
- core: add internal core::str_bytes module handling string-like slices
  pacak
  committed
  736b2f1
- coretests: Add a few tests for backward multibyte predicate
  pacak
  committed
  c30ca3a
- core: add concept of Flavour to core::str_bytes
  pacak
  committed
  2ce7a93
- core: add memchr-based single-ascii byte search to str_bytes
  pacak
  committed
  6f8ccbc