[Bug testsuite/64885] libstdc++ all_attributes failure

[dje at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64885

--- Comment #1 from David Edelsohn <dje at gcc dot gnu.org> ---
Created attachment 34633
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34633&action=edit
gzipped pre-processed source of testcase