Fix newer clippy errors

[linkmauve]

These are mostly more lifetime elisions, and Option::is_some_and(f) replacing Option::map(false, f), see: https://github.com/pest-parser/pest/actions/runs/18968907018/job/54188036314

Fixes CI.

Summary by CodeRabbit

• Refactor
  • Generalized internal lifetime parameters across iterator and utility types, broadening their applicability without changing observable behavior.
  • Simplified method signature handling to improve code maintainability and flexibility.

[coderabbitai]

Note

Currently processing new changes in this PR. This may take a few minutes, please wait...

📥 Commits

Reviewing files that changed from the base of the PR and between c51e047 and 6e7a4e1.

📒 Files selected for processing (7)

• pest/src/iterators/flat_pairs.rs (3 hunks)
• pest/src/iterators/pair.rs (4 hunks)
• pest/src/iterators/pairs.rs (5 hunks)
• pest/src/iterators/tokens.rs (3 hunks)
• pest/src/parser_state.rs (1 hunks)
• pest/src/position.rs (3 hunks)
• pest/src/span.rs (2 hunks)

 _______________________________________________________________________________________________________
< Start when you're ready. You've been building experience all your life. Don't ignore niggling doubts. >
 -------------------------------------------------------------------------------------------------------
  \
   \   (\__/)
       (•ㅅ•)
       / 　 づ

Tip

CodeRabbit can enforce grammar and style rules using `languagetool`.

Configure languagetool in your project's settings in CodeRabbit enable/disable rules and categories. Refer to the LanguageTool Community to learn more.

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}