IDE: using -Xp and -V as keys for cache of fpc settings

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@44289 4005530d-fff6-0310-9dd1-cebe43e6787f
codetools: clean up

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@44290 4005530d-fff6-0310-9dd1-cebe43e6787f