IDE: improve comment

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@43548 4005530d-fff6-0310-9dd1-cebe43e6787f
Codetools: fix return value of TFindDeclarationTool.BuildInterfaceIdentifierCache

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@43549 4005530d-fff6-0310-9dd1-cebe43e6787f