You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: manual_str_repeat.rs
    path of file: ./repos/rust-clippy/tests/ui
    
    the code of the file until where you have to start completion: #![allow(non_local_definitions)]
#![warn(clippy::manual_str_repeat)]

use std::borrow::Cow;
use std::iter::repeat;

fn main() {
    let _: String = std::iter::repeat("test").take(10).collect();
    let _: String = std::iter::repeat('x').take(10).collect();
    let _: S
    
fn main() {
    let _: String = std::iter::repeat("test").take(10).collect();
    let _: String = std::iter::repeat('x').take(10).collect();
    let _: String = std::iter::repeat('\'').take(10).collect();
    let _: String = std::iter::repeat('"').take(10).collect();

    let x = "test";
    let count = 10;
    let _ = repeat(x).take(count + 2).collect::<String>();

    macro_rules! m {
        ($e:expr) => {{ $e }};
    }
    // FIXME: macro args are fine
    let _: String = repeat(m!("test")).take(m!(count)).collect();

    let x = &x;
    let _: String = repeat(*x).take(count).collect();

    macro_rules! repeat_m {
        ($e:expr) => {{ repeat($e) }};
    }
    // Don't lint, repeat is from a macro.
    let _: String = repeat_m!("test").take(count).collect();

    let x: Box<str> = Box::from("test");
    let _: String = repeat(x).take(count).collect();

    #[derive(Clone)]
    struct S;
    impl FromIterator<Box<S>> for String {
        fn from_iter<T: IntoIterator<Item = Box<S>>>(_: T) -> Self {
            Self::new()
        }
    }
    // Don't lint, wrong box type
    let _: String = repeat(Box::new(S)).take(count).collect();

    let _: String = repeat(Cow::Borrowed("test")).take(count).collect();

    let x = "x".to_owned();
    let _: String = repeat(x).take(count).collect();

    let x = 'x';
    // Don't lint, not char literal
    let _: String = repeat(x).take(count).collect();
}