to avoid: non-private labels cannot appear between .cfi_startproc / .cfi_endproc pairs

to fix:

/workspace/srcdir/julia/src/jitlayers.cpp:665:54: error: no viable constructor or deduction guide for deduction of template arguments of 'tuple'
  665 |         incompletemodules.insert(std::pair(codeinst, std::tuple(std::move(params), waiting)));

maybe caused by our mix of a very recent clang with a very old sdk / libc++