rust/tests/coverage/await_ready.coverage

   LL|       |#![feature(coverage_attribute)]
   LL|       |#![coverage(off)]
   LL|       |//@ edition: 2021
   LL|       |
   LL|       |//@ aux-build: executor.rs
   LL|       |extern crate executor;
   LL|       |
   LL|       |async fn ready() -> u8 {
   LL|       |    1
   LL|       |}
   LL|       |
   LL|       |#[coverage(on)]
   LL|       |#[rustfmt::skip]
   LL|      1|async fn await_ready() -> u8 {
   LL|      1|    // await should be covered even if the function never yields
   LL|      1|    ready()
   LL|      1|        .await
   LL|      1|}
   LL|       |
   LL|       |fn main() {
   LL|       |    let mut future = Box::pin(await_ready());
   LL|       |    executor::block_on(future.as_mut());
   LL|       |}