- `T: ~const Drop` has a special meaning in Rust 1.61 that we don't implement.
(So ideally, we'd only ignore `~const Drop`, but this should be fine
for now.)
- `Destruct` impls are built-in in 1.62 (current nightlies as of 08-04-2022), so until
the builtin impls are supported by Chalk, we ignore them as well.
Since `Destruct` is implemented for everything in non-const contexts
IIUC, this should also work fine.
Fixes#11932.
340f0fc333