fill match arms assist put the code in the wrong place

rust-analyzer version: v0.4.1157

rustc version: rustc 1.64.0-nightly (9067d5277 2022-07-28)

fill match arms assist put the code in the wrong place!

https://user-images.githubusercontent.com/13777628/182836330-27603145-5ff2-4755-bbd0-2e003719c92f.mp4

Reload the window doesn't solve the problem.

Minimal reproduce:

// crate macro_lab, lab.rs
use proc_macro::TokenStream;
use quote::quote;
use syn::{parse_macro_input, ItemFn};

#[proc_macro_attribute]
pub fn untouched(_attr: TokenStream, item: TokenStream) -> TokenStream {
    let input = parse_macro_input!(item as ItemFn);
    let tokens = quote! {
        #input
    };
    tokens.into()
}

// main.rs
use macro_lab::untouched;

#[untouched]
fn f() {
    enum E {
        A,
        B,
    }
    let e = E::A;
    match e {
    }
}

However if we define untouched like this:

pub fn untouched(_attr: TokenStream, item: TokenStream) -> TokenStream {
    item
}

the bug doesn't occur.

Reproduce the issue using the proc-macro definitions in lab.rs and the annotated function in main.rs, then invoke the “fill match arms” assist on the empty match. Compare the behavior when the attribute macro expands through quote! versus returning item directly; done means the generated arms are inserted inside the intended match expression.