At the current rate of progress I'm wondering how long it will take for llm agents to be able to rewrite/translate complete projects into another language. SQLite may not be the best candidate, due to the hidden test suite. But CPython or Clang or binutils or...

The RIIR-benchmark: rewrite CPython in Rust, pass the complete test suite, no performance regressions, $100 budget. How far away are we there, a couple months? A few years? Or is it a completely ill-posed problem, due to the test suite being tied to the implementation language?