VSCode, the "Find all references" and "Rename symbol" work out-of-the-box, even if your code isn't typed. With good coding practice, references, "senders" and

VSCode, the "Find all references" and "Rename symbol" work out-of-the-box, even if your code isn't typed. With good coding practice, references, "senders" and "implementers," and renaming worked well in Smalltalk. Where I missed types was during refactoring, and that also worked well about 99% of the time without types. It was that one last thing that we couldn't be 100% sure of that blocked the big refactoring we all wanted to do badly -- that's when I missed types!