Review for NeurIPS paper: Synthesize, Execute and Debug: Learning to Repair for Neural Program Synthesis

Additional Feedback: I enjoyed reading your paper. The notion of a debugger is intuitive and seems to have a very positive impact. Unfortunately, it's not a novel contribution, since it was published in the earlier ICLR workshop paper, which steals the thunder from this submission a bit. Pre-training on synthetic mutations, before fine-tuning on real buggy synthesized programs seems simple and effective! The contribution of TraceEmbed appears to be more of a negative result, given that it doesn't add that much, and it only improves accuracy before any real improvements have been made by the debugger. Overall, this is a nice extended presentation of the previously published concept of a neural debugger.