MacroScript: start selftests

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42256 4005530d-fff6-0310-9dd1-cebe43e6787f
MacroScript: start selftests

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42257 4005530d-fff6-0310-9dd1-cebe43e6787f