[Bug target/112863] [14 regression] Many obj-c++ tests FAIL on macOS 12+

[iains at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112863

--- Comment #1 from Iain Sandoe <iains at gcc dot gnu.org> ---
which Xcode version produces this?
on Darwin23 with XC15.1 I get clean obj-c++ results
(but we should omit the duplicates anyway)