IDE: codebrowser: less idle events

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@43890 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: help on unknown identifier: start codebrowser

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@43891 4005530d-fff6-0310-9dd1-cebe43e6787f