codetools: fixed TPointerToPointerTree.DisposeItem

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42726 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: unit dependencies: show complex routes

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42727 4005530d-fff6-0310-9dd1-cebe43e6787f