codetools: sourcecloser: clean up

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42540 4005530d-fff6-0310-9dd1-cebe43e6787f
Installer, win:  cross compile , allow adding gdb

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42541 4005530d-fff6-0310-9dd1-cebe43e6787f