chore: bump MSRV to 1.91.0 and fix clippy warnings
- Bump rust-version from 1.90.0 to 1.91.0 (N-2 policy)
- Fix `unnecessary_unwrap` in no_static_only_class.rs
- Fix `unnecessary_unwrap` in playground/src/lib.rs
- Fix `test_attr_in_doctest` in symbol_tester.rs
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
feat(oxc_str): add IdentHashMap and IdentHasher
Add specialized hash map types for Ident keys that leverage the
precomputed hash, making hash map operations very fast.
- IdentHasher: A no-op hasher that uses the precomputed hash from Ident
- IdentHashMap: HashMap using IdentHasher for Ident keys
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>