Summary:
- Fix compiler warnings in all 20 FAISS C++ test files
- Fixes include `-Wshadow`, `-Wunused-parameter`, and signed/unsigned comparisons
All changes are mechanical. No functional changes.
Part 13/13 of the compiler warnings cleanup (split from https://github.com/facebookresearch/faiss/issues/4810 per maintainer request).
Pull Request resolved: https://github.com/facebookresearch/faiss/pull/4944
Test Plan:
- [x] No functional changes — all fixes are mechanical renames and annotations
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>
Reviewed By: mnorris11
Differential Revision: D96996609
Pulled By: alibeklfc
fbshipit-source-id: 72555246a4ccf540eb5422e64018c8d5e2660dce
