[Rust] async not highlighted

[dyedgreen]

• Sublime Version: 3.2.2
• OS Version: 10.15.4

// async/ await is not highlighted
async fn test() {
    other_fn().await;
}

[michaelblyons]

Perhaps look into #2305?

[dyedgreen]

Yeah, I believe that should contain the relevant fix 😃

Should we leave this issue open and close it when #2305 lands? (I was previously searching the open issues and this didn't come up, which is why I opened the new issue, I'd imagine this would help point people in the right direction 😅)

[deathaxe]

Fixed by #2305