Enum scope bug

[christianschmitz]

Importing a regular function into a script, and then defining a method on an enum within the script that imported the regular function, and then attempting to call that method results in a compiler error

[christianschmitz]

Bug was due to member methods of structs and enums being added to their own scope in case of recursive calls. This of course only makes sense for non-member func statements.

[christianschmitz]

Resolved in 0.16.5