Make type_jump easier to use by not having to give it the list of parameters.

theories/typing/cont.v

theories/typing/examples/get_x.v

theories/typing/examples/init_prod.v

theories/typing/examples/lazy_lft.v

theories/typing/examples/rebor.v

theories/typing/examples/unbox.v

theories/typing/lib/cell.v

theories/typing/lib/fake_shared_box.v

theories/typing/lib/option.v

theories/typing/lib/rc.v

theories/typing/lib/refcell/ref_code.v

theories/typing/lib/refcell/refcell_code.v

theories/typing/lib/refcell/refmut_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/lib/spawn.v