Make some Ordering methods const Constify the following methods of `core::cmp::Ordering`: - `reverse` - `then` Possible because of #49146 (Allow `if` and `match` in constants). Tracking issue: #76113
Make some Ordering methods const Constify the following methods of `core::cmp::Ordering`: - `reverse` - `then` Possible because of #49146 (Allow `if` and `match` in constants). Tracking issue: #76113