Stabilize is_some_and

[jplatte]

This stabilizes the following public API:

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

[rustbot]

r? @joshtriplett

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[rustbot]

Hey! It looks like you've submitted a new PR for the library teams!

If this PR contains changes to any rust-lang/rust public library APIs then please comment with @rustbot label +T-libs-api -T-libs to tag it appropriately. If this PR contains changes to any unstable APIs please edit the PR description to add a link to the relevant API Change Proposal or create one if you haven't already. If you're unsure where your change falls no worries, just leave it as is and the reviewer will take a look and make a decision to forward on if necessary.

Examples of T-libs-api changes:

• Stabilizing library features
• Introducing insta-stable changes such as new implementations of existing stable traits on existing stable types
• Introducing new or changing existing unstable library APIs (excluding permanently unstable features / features without a tracking issue)
• Changing public documentation in ways that create new stability guarantees
• Changing observable runtime behavior of library APIs

The Miri subtree was changed

cc @rust-lang/miri

[Amanieu]

I've updated the PR description with the correct signatures with closures taking T by value.

[Amanieu]

@bors r+

[bors]

📌 Commit 443928f has been approved by Amanieu

It is now in the queue for this repository.

[bors]

⌛ Testing commit 443928f with merge b6f6104...

[bors]

☀️ Test successful - checks-actions
Approved by: Amanieu
Pushing b6f6104 to master...

[rust-timer]

Finished benchmarking commit (b6f6104): comparison URL.

Overall result: no relevant changes - no action needed

@rustbot label: -perf-regression

Instruction count

This benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	3.5%	[2.1%, 4.4%]	3
Regressions ❌ (secondary)	2.2%	[1.4%, 3.0%]	2
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	3.5%	[2.1%, 4.4%]	3

Cycles

This benchmark run did not return any relevant results for this metric.