Global Functions not visible to Extended Types

I think this is best explained in code.

This works :

Type Base
   Global A:Int
End Type

Type Ext Extends Base

   Function DoStuff()
      Super.A=10
   End Function
End Type

And this doesn't :

Type Base
   Global A()
End Type

Type Ext Extends Base

   Function DoStuff()
      Super.A=DoOtherStuff
   End Function

   Function DoOtherStuff()
      Print "BLAH"
   End Function

End Type

And the reason it doesn't is that Identifier Super.A is not found.

Is it my syntax ( It's 4am as I type this, so I could have messed something up ) or is this supposed not to work? Solution?

BTW it works just fine if I move the functions out of the type. But then I've destroyed the aim of keeping everything self-contained.