[Bug lto/70187] [6 Regression] ICE (segfault) in lto1 with -Wsuggest-final-methods/-Wsuggest-final-types

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70187

--- Comment #2 from vries at gcc dot gnu.org ---
Created attachment 37968
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37968&action=edit
tentative patch