largebuffers: Add cursor integer helpers

[rafaelroquetto]

Add cursor equivalents of the integer scalar helpers. These will be used to simplify the parsing code.

Checklist

• If this enhances / fixes / changes a core feature, I have updated the features documentation

[Copilot]

Copilot encountered an error and was unable to review this pull request. You can try again by re-requesting a review.

[Copilot]

Copilot encountered an error and was unable to review this pull request. You can try again by re-requesting a review.

[Copilot]

Copilot encountered an error and was unable to review this pull request. You can try again by re-requesting a review.

[rafaelroquetto]

DO NOT MERGE until actions / tests are working again and have passed

[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 4 comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

You can also share your feedback on Copilot code review. Take the survey.

[codecov]

Codecov Report

❌ Patch coverage is 65.15152% with 23 lines in your changes missing coverage. Please review.
✅ Project coverage is 43.97%. Comparing base (2e2c5c6) to head (9457c4a).
⚠️ Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/internal/largebuf/large_buffer.go	65.15%	18 Missing and 5 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1476      +/-   ##
==========================================
+ Coverage   43.93%   43.97%   +0.03%     
==========================================
  Files         313      313              
  Lines       34265    34331      +66     
==========================================
+ Hits        15055    15096      +41     
- Misses      18232    18251      +19     
- Partials      978      984       +6     

Flag	Coverage Δ
integration-test	21.46% <0.00%> (-0.25%)	⬇️
integration-test-arm	0.00% <0.00%> (ø)
integration-test-vm-x86_64-5.15.152	?
integration-test-vm-x86_64-6.10.6	?
k8s-integration-test	2.28% <0.00%> (-0.01%)	⬇️
oats-test	0.00% <0.00%> (ø)
unittests	44.99% <81.13%> (+0.06%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[Copilot]

Copilot encountered an error and was unable to review this pull request. You can try again by re-requesting a review.