Suggest integer_sign_cast usage

[leonardo-m]

What it does

I suggest to add a lint, when the time is ripe, that suggests to replace some "as" integer casts with the nicer signed/unsigned cast functions:

rust-lang/rust#125882

Advantage

It's a little safer than as casts, and it isn't easy to remember that such standard functions exist.

Drawbacks

No response

Example

<code>

Could be written as:

<code>

[Rua]

I think it's the same as #14150?

[leonardo-m]

Yes, so I close this down, thank you.