[Bug c/87983] Feature: Add a warning when case labels from a different enum than the one in switch(EXPR) are used

[avarab at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87983

--- Comment #1 from Ævar Arnfjörð Bjarmason <avarab at gmail dot com> ---
FYI: I filed a bug with clang for the same feature:
https://bugs.llvm.org/show_bug.cgi?id=39635