Bugs found in XOtclIde
1. Browser is wrong (menu crashed) if corresponding object is destroyed.
ATK: This state should not happen in normal usage because the life of browser object is coupled withlife of browser object.
In "switch $type", cases "file" and "wfile", lines "label $win.f${name} ..." and "$win.f${name} insert ..." are not compatible. Need to choose between "label ... ... configure -text..." and "entry ... ... insert ..."