IDE: Improve Conditional Define GUI.

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42233 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: migrate compiler message types

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42234 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: rename a generic resource string "Apply".

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42235 4005530d-fff6-0310-9dd1-cebe43e6787f