anchordocking: restoretest: started treeview

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@39714 4005530d-fff6-0310-9dd1-cebe43e6787f
anchordocking: TAnchorDockLayoutTree.GetModified

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@39715 4005530d-fff6-0310-9dd1-cebe43e6787f