[Bug c++/80370] [7 Regression] ICE when using structured bindings and nested generic lambdas (tsubst_decomp_names)

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80370

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 41165
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41165&action=edit
gcc7-pr80370.patch

Untested fix.