[ty] Recurse into tuples and nested tuples when applying special-cased validation of `isinstance()` and `issubclass()` by AlexWaygood · Pull Request #23607 · astral-sh/ruff

Performance Gate Passed

✅ 26 untouched benchmarks
⏩ 30 skipped benchmarks¹

_{Comparing claude/fix-isinstance-issubclass-diagnostics-NT9SK (06510e5) with main (e30a40e)}

30 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩