[Bug ipa/79931] ICE in dump_possible_polymorphic_call_targets with -fdump-ipa-all -O2

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79931

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The assert:
  gcc_assert (targets.length () <= len);