Bytecode parity by youknowone · Pull Request #7507 · RustPython/RustPython

Compiler changes:
- Emit TO_BOOL in and/or short-circuit evaluation (COPY+TO_BOOL+JUMP)
- Add module-level __conditional_annotations__ cell (PEP 649)
- Only set conditional annotations for AnnAssign, not function params
- Skip __classdict__ cell when future annotations are active
- Convert list literals to tuples in for-loop iterables
- Fix cell variable ordering: parameters first, then alphabetical
- Fix RESUME DEPTH1 flag for yield-from/await
- Don't propagate __classdict__/__conditional_annotations__ freevar
  through regular functions — only annotation/type-param scopes
- Inline string compilation path

SIGSEGV in _finalizer_registry dict access under aggressive GC
and thread switching. Root cause is dict thread-safety in VM.