"Highlight related" does not work correctly in attribute macros

[jonas-schievink]

In the following two examples, putting the cursor on either of the two variable identifiers only highlights the definition, not the subsequent use:

#[tokio::main]
async fn main() {
    let variable = "";
    variable;
}

#[async_trait::async_trait]
trait AsyncTrait {
    fn default(&self) {
        let variable = "";
        variable;
    }
}

Since it happens with 2 mostly unrelated proc macros, I think this is a rust-analyzer bug or limitation.

[Veykril]

This is due to our token mapping breaking down