codetools: clean up

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41078 4005530d-fff6-0310-9dd1-cebe43e6787f
codetools: clean up

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41079 4005530d-fff6-0310-9dd1-cebe43e6787f
codetools: identifier completion: do not add unit name if identifier is in same unit

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41080 4005530d-fff6-0310-9dd1-cebe43e6787f