Fixes Transpilation bug - enums as class initial values

[markwpearce]

Previously, there was a transpilation bug when using enums directly (eg. with no namespace prefix) inside a namespace... I was seeing it especially in classes.

                namespace MyNS
                    class HasEnumKlass
                        enumValue = MyEnum.A
                    end class

                    enum MyEnum
                        A = "A"
                        B = "B"
                    end enum
                end namespace

was being transpiled to (notice the MyEnum.A):

            function __MyNS_HasEnumKlass_builder()
                    instance = {}
                    instance.new = sub()
                        m.enumValue = MyEnum.A
                    end sub
                    return instance
                end function
                function MyNS_HasEnumKlass()
                    instance = __MyNS_HasEnumKlass_builder()
                    instance.new()
                    return instance
                end function