Use the correct upper scope
Use the correct upper scope

I'm not sure what bugs this is causing, but it definitely looks broken. There is no such thing as `scopeManager.upper`. Following the [docs](https://github.com/estools/escope/blob/aa35861faa76a09f01203dee3497a939d70b463c/README.md#example), we should use `currentScope.upper`.
mohebifar/xto6,lebab/lebab,mohebifar/lebab