Sometimes there are several files with the same name, e.g.
How to configure
- Enable the plugin: go to Settings > Configure Kate > Application Plugins and enable 'Kate Backtrace Browser'
- A config page appeared, so click on it and add the directories containing the source code
- Clicking OK will start indexing. It will take some time (the index of kdesupport + kdelibs + kdepimlibs + kdebase + kdesdk + playground/plasma + plasma-addons + kdevplatform + kdegraphics is about 6MB)
Hope it's useful :)