Summary

B007 reports unused loop control variables, but the emitted diagnostic doesn’t include DiagnosticTag::Unnecessary, so editors don’t dim these names.

I’m not sure whether omission of the tag is intentional, but I don’t see a downside for the Certain path.
For Uncertain cases (may not be used), we can keep behaviour unchanged to avoid possible false-positives.

(Noticed while working on astral-sh/ty#2607)

Version

ruff 0.14.8 (9d4f1c6 2025-12-04)