Created attachment 177578 [details]
Correct behavior

SUMMARY
I noticed that after an update, KDevelop no longer correctly highlights and interprets code lines using #define directives. Strings inside these directives are not highlighted as strings, and features like jumping to declarations don't work correctly. Instead, using Ctrl + Left Click takes me to a random line unrelated to the original click.

I started downgrading and rebuilding KDevelop, and eventually, when I built it with Clang/LLVM 18, everything returned to normal.

STEPS TO REPRODUCE
1. Take the system with clang/llvm 19
2. Open in KDevelop some C++ project
3. Check lines that uses #define directive

OBSERVED RESULT
Misinterpreted 

EXPECTED RESULT
Correctly treated each variable/parameter/string/etc