codetools: FindRealCompilerInPath: check for -Xp

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@44008 4005530d-fff6-0310-9dd1-cebe43e6787f
codetools: FindRealCompilerInPath: check for -V

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@44009 4005530d-fff6-0310-9dd1-cebe43e6787f