[Bug tree-optimization/122380] [15 regression] std::variant with std::vectors of differing types may lead to double frees since r15-5595

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122380

--- Comment #24 from Richard Biener <rguenth at gcc dot gnu.org> ---
Given the fallout I'm not going to backport this.