RFC for structs with undefined layouts.
General grammar/spelling/copy-editing.
Remove security from the RFC.
Mention the lint in the detailed design.
Write up the upstream FFI issue a little.
Randomisation can be used for fuzz testing.
Mention DST + field reordering.
Resolve the lint + extern fn question.
Merge remote-tracking branch 'huonw/struct-repr'
Accept RFC 18