Can someone help me with this lldb crasher?

I’m trying to use LLDB to get info about the types in large-ish programs, notably Google Chrome, and I hit this crasher. I don’t think I have a good handle on how to chase this further, can you take a look, or point me in a profitable direction?

Mkay, looks like I found a simple fix.

I hope my patch is good. Have a nice weekend all!