compare this snippet from qtmultimedia:

#if __has_include(<spa/param/audio/raw-utils.h>)
#  include <spa/param/audio/raw-utils.h>
#else
#  include "qpipewire_spa_compat_p.h"
#endif

"follow symbol under cursor" behaviour:

• _has_include will navigate to "# define Q_DECL_EXPORT_OVERRIDABLE __attribute_((visibility("default"), weak))"
• any of the path components in the header path will navigate to a source file with a member variable of that path component. e.g. "raw" will navigate to /usr/include/spa-0.2/spa/param/video/format.h, which has a struct spa_video_info with a union member "raw"

expected behaviour:

• __has_include should not navigate anywhere
• the path in __has_include should navigate to the file (if it exists)