codetools: code contexts: list global properties

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@44255 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: identifier completion: global property

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@44256 4005530d-fff6-0310-9dd1-cebe43e6787f