Posn not correctly interpreted for Combo and Button objects

[mkromberg]

Run DemoTreeView. Notice that the TableSize, Function, CalcBtn, PasswordField controls are all created with the first element of Posn =210.

{"WC":{"ID":"F1.TableSize",...,"Posn":[210,10],"Size":[23,100],"Text":"10","Type":"Edit"}}}
{"WC":{"ID":"F1.Function",...,"Posn":[210,120],"SelItems":[1,0,0,0],"Size":[23,100],"Text":"+","Type":"Combo"}}}
{"WC":{"ID":"F1.CalcBtn",...,"Posn":[210,230],"Size":[23,100],"Type":"Button"}}}
{"WC":{"ID":"F1.PasswordField","Properties":{"Event":[["Change",""]],"Password":"*","Posn":[210,340],"Size":[23,100],"Text":"Password","Type":"Edit"}}}

These used to be drawn on a line, but now: