codetools: do not end implementation at uses section

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@39903 4005530d-fff6-0310-9dd1-cebe43e6787f
codetools: on error, expand parent nodes of unclosed current node

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@39904 4005530d-fff6-0310-9dd1-cebe43e6787f