some files seems a bit large?

```
find ./pyrefly/ -name "*.rs" -exec wc -l {} \+ | sort -rh
317722 total
16745 ./pyrefly/lib/report/pysa/pysa_report_capnp.rs
7973 ./pyrefly/lib/test/pysa/call_graph.rs
6534 ./pyrefly/lib/lsp/non_wasm/server.rs
6337 ./pyrefly/lib/alt/solve.rs
5381 ./pyrefly/lib/module/finder.rs
5114 ./pyrefly/lib/alt/class/class_field.rs
4991 ./pyrefly/lib/test/lsp/code_actions.rs
4688 ./pyrefly/lib/state/lsp.rs
4620 ./pyrefly/lib/report/pysa/call_graph.rs
4236 ./pyrefly/lib/alt/answers_solver.rs
4096 ./pyrefly/lib/binding/scope.rs
3932 ./pyrefly/lib/test/narrow.rs
3780 ./pyrefly/lib/alt/expr.rs
3727 ./pyrefly/lib/solver/solver.rs
3511 ./pyrefly/lib/test/lsp/definition.rs
3478 ./pyrefly/lib/state/state.rs
3374 ./pyrefly/lib/binding/binding.rs
3237 ./pyrefly/lib/test/lsp/completion.rs
3062 ./pyrefly/lib/alt/attr.rs
```