LCL, Treeview: redraw nodes after sorting them. Issue #23697

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@39898 4005530d-fff6-0310-9dd1-cebe43e6787f
codetools: UpdateNeeded: when sources changed, clear last error

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@39899 4005530d-fff6-0310-9dd1-cebe43e6787f