There's still some thing wrong cc.
rev 6091.
Open the contribute plugin workspace, and active threadsearch plugin.
Then open the "src\plugins\contrib\ThreadSearch\ThreadSearch.h", then you can see there's no class shown in "symbols browser".
Edit:
I just test in an old version(rev 5908), and found that this bug was there too. so, it is an old bug, not introduced recently.
