[Bug c++/87322] [8/9 Regression] GCC fails to parse captured lambda of 2nd inner lambda if the captured lambda has "," (having 2 arguments)

[aoliva at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87322

--- Comment #6 from Alexandre Oliva <aoliva at gcc dot gnu.org> ---
The attached patch had several regressions, use the one I posted instead.
https://gcc.gnu.org/ml/gcc-patches/2019-02/msg00371.html