Martin Habovstiak f42e96149d Stabilize poison API of Once, rename poisoned()
This stabilizes:

* `OnceState`
* `OnceState::is_poisoned()` (previously named `poisoned()`)
* `Once::call_once_force()`

`poisoned()` was renamed because the new name is more clear as a few
people agreed and nobody objected.

Closes #33577
2021-02-04 15:20:14 +01:00
..
2020-12-07 15:22:34 +01:00
2020-11-22 17:11:41 -05:00
2021-01-07 16:16:36 +09:00