[Bug other/67264] Infinite recursion of demangler on fuzzed input

[miyuki at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67264

--- Comment #1 from Mikhail Maltsev <miyuki at gcc dot gnu.org> ---
Created attachment 36208
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36208&action=edit
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