Darwin/aarch64: Use Clang cache invalidation builtin
Darwin/aarch64: Use Clang cache invalidation builtin

biosbits/libffi,zwaldowski/libffi-iOS,nmav/libffi,joshtriplett/libffi,joshtriplett/libffi,biosbits/libffi,plicease/libffi,johne53/MB3Libffi,nmav/libffi,zwaldowski/libffi-iOS,s1341/libffi,bgarrels/libffi,plicease/libffi,johne53/MB3Libffi,s1341/libffi,bgarrels/libffi,joshtriplett/libffi,davibe/libffi,zwaldowski/libffi-iOS,zwaldowski/libffi-iOS,plicease/libffi,biosbits/libffi,bgarrels/libffi,biosbits/libffi,joshtriplett/libffi,s1341/libffi,johne53/MB3Libffi,nmav/libffi,Pan7/libffi,Distrotech/libffi,Distrotech/libffi,zwaldowski/libffi-iOS,Pan7/libffi,rth7680/libffi,johne53/MB3Libffi,Pan7/libffi,plicease/libffi,johne53/MB3Libffi,Distrotech/libffi,davibe/libffi,bgarrels/libffi,rth7680/libffi,rth7680/libffi,rth7680/libffi,davibe/libffi,davibe/libffi,s1341/libffi,Distrotech/libffi,Pan7/libffi,nmav/libffi