[Bug middle-end/60725] [-Wreturn-type] false positive in trivial switch

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60725

--- Comment #8 from Eric Gallager <egallager at gcc dot gnu.org> ---
Worth returning to this issue now that -Wreturn-type is enabled by default for
gcc8.