I think your point about continuous integration is very true. I'd maybe even go further, if you could make a version control system understood ASTs and these so

I think your point about continuous integration is very true. I'd maybe even go further, if you could make a version control system understood ASTs and these sort of 'declare me function' operations (and you had enough test coverage) maybe you could have all the operations from everyone go straight on to 'master', in real-time, ready to be deployed - no branches, beyond trunk-based development, more like trunk-only development.