[PD] data structures - get symbol?

[João Miguel Pais]

> Well, it shouldn't but it might still do so. Did you try to use
> [pointer f-teil] instead to make sure, you get the right type?

when I use it pd doesn't break. but it goes through all the structs in the  
patch (here "sek-tick" and "f-teil"). although that's not exactly what I  
wanted, I can make it work as it is, by filtering out the other structs.