1. Create a new Qt Widgets Application project
2. In "Tools" -> "Options..." -> "C++" -> "Code Model", select "Clang-Tidy and Clazy preselected checks [built-in]".
3. Click "OK".
4. Open main.cpp.
   You'll see a light bulb warning near the last line:
   
5. Collapse function main.
   The light bulb will move up and then be in the middle of the line:
   

The light bulb should be shown in a less disturbing place.