Allow `#[expect]` and `#[allow]` within function bodies for `missing_panics_doc` (#14407)

Implements
https://github.com/rust-lang/rust-clippy/issues/11436#issuecomment-2719199421

> [...] I'd really like to be able to (reusing some above examples),
>
> ``` rust
> /// Do something
> pub fn string_from_byte_stream() -> String {
>     let bytes = get_valid_utf8();
> #[expect(clippy::missing_panics_doc_ok, reason="caller can't do
anything about this")]
> String::from_utf8(bytes).expect("`get_valid_utf8()` always returns
valid UTF-8")
> }
> ```

Also fixes an issue where if the first panic is in a `const` context
disables the lint for the rest of the function

The first commit is just moving code around

changelog: [`missing_panics_doc`]: `#[allow]` and `#[expect]` can now be
used within the function body to ignore individual panics

0 files changed, 0 insertions, 0 deletions