Scope restrictions

Since we've kicked off the implementation effort for this effort, let me make a thread for organizing the implementation design. I want to start us off with a bunch of AST design points. This isn't exhaustive of the things we have to talk about, but it was as much as I could write before I got exhausted, so. AST design requirements I want to run through what we need at a high level and then talk about some practical engineering questions about them. Function scope parameters and arguments Func...