IDE: started ifdef update via codetools

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41145 4005530d-fff6-0310-9dd1-cebe43e6787f
codetools: linkscanner: quicker UpdateNeeded

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41146 4005530d-fff6-0310-9dd1-cebe43e6787f