Idem for the types of shared and unique borrows.

theories/lifetime/at_borrow.v

theories/lifetime/frac_borrow.v

theories/lifetime/lifetime_sig.v

theories/lifetime/model/definitions.v

theories/lifetime/na_borrow.v

theories/typing/borrow.v

theories/typing/examples/get_x.v

theories/typing/examples/rebor.v

theories/typing/examples/unbox.v

theories/typing/lib/arc.v

theories/typing/lib/fake_shared_box.v

theories/typing/lib/rc/rc.v

theories/typing/lib/rc/weak.v

theories/typing/lib/refcell/ref_code.v

theories/typing/lib/refcell/refcell_code.v

theories/typing/lib/rwlock/rwlock_code.v

theories/typing/lib/rwlock/rwlockreadguard_code.v

theories/typing/lib/rwlock/rwlockwriteguard_code.v

theories/typing/product_split.v

theories/typing/shr_bor.v