d5fa755e63
It looks like K1 doesn't do them.
And it's not particularly bad because
in the ideal world we'd have dynamics
with variable upper bound so that
in `dynamic?.let { it }` `it` would
be `Nothing..Any` (smartcasting to
`Any` is not correct because `dynamic`
can be passed into anything, but `Any`
can not).
^KT-63071