Squashed 'ffi-mini/' changes from e0505aa..72049b1

72049b1 libffi v3.0.14-rc0-WIP4: zwaldowski/libffi-iOS@fbb0bae

git-subtree-dir: ffi-mini
git-subtree-split: 72049b11870a5f67658ff43115ac07075305603b
Merge commit '1cae1c7a72570c701a22f4d90287d1b19a3d8189' into next