Stabilize is_some_and
This stabilizes the following public API:
```rust
impl<T> Option<T> {
pub fn is_some_and(self, f: impl FnOnce(T) -> bool) -> bool;
}
impl<T, E> Result<T, E> {
pub fn is_ok_and(self, f: impl FnOnce(T) -> bool) -> bool;
pub fn is_err_and(self, f: impl FnOnce(E) -> bool) -> bool;
}
```
Closes #93050 (tracking issue).
`@rustbot` label +T-libs-api -T-libs
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| build.rs | ||
| Cargo.toml | ||