[Bug c++/99833] [8/9/10/11 Regression] structured binding + if init + generic lambda = internal compiler error

[ppalka at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99833

--- Comment #10 from Patrick Palka <ppalka at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #9)
> Created attachment 50591 [details]
> gcc11-pr99833.patch
> 
> Untested fix.  This seems to work for me...

Ah, I hadn't considered that the problem might be in extract_locals_spec. 
You're much farther than I am on this PR :)  Please feel free to take it.