This was comparing some .size() (uint64_t) against the sizeof a size_t
which changes with system bitness. This produced a warning that
brought this to my attention.
These tests were failing too on 32 bit Arm only:
lld :: MachO/objc-category-merging-complete-test.s
lld :: MachO/objc-category-merging-minimal.s
The assert I think meant to check the value of target->wordSize,
not the size of its type. Which is a type that changes size between
systems.
cde806b0e6