unhelpful E0277 when writing `func(&a: &T)` instead of `func(a: &T)`

Code

use std::path::Path;

fn main() {
    fun_with_path(&Path::new("."));
    fun_with_int(&0);
}

// &a: &Path    should've been a: &Path
pub fn fun_with_path(&a: &Path) {
    println!("{:?}", a);
}

// ok 
pub fn fun_with_int(&a: &i32) {
    println!("{:?}", a);
}

Current output

Compiling playground v0.0.1 (/playground)
error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
    --> src/main.rs:9:23
     |
9    | pub fn fun_with_path(&a: &Path) {
     |                       ^ doesn't have a size known at compile-time
     |
     = help: within `Path`, the trait `Sized` is not implemented for `[u8]`
note: required because it appears within the type `Path`
    --> /playground/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/path.rs:2137:12
     |
2137 | pub struct Path {
     |            ^^^^
     = note: all local variables must have a statically known size
     = help: unsized locals are gated as an unstable feature

For more information about this error, try `rustc --explain E0277`.
error: could not compile `playground` (bin "playground") due to 1 previous error

Desired output

point at the `&` of `&a` in `fun_with_path` and suggest removing it?

Rationale and extra context

No response

Other cases

Rust Version

rustc 1.85.0-nightly (a4cb3c831 2024-12-17)
binary: rustc
commit-hash: a4cb3c831823d9baa56c3d90514b75b2660116fa
commit-date: 2024-12-17
host: x86_64-unknown-linux-gnu
release: 1.85.0-nightly
LLVM version: 19.1.5

Anything else?

No response

Reproduce the report using the code in src/main.rs and compare the current E0277 output with the requested diagnostic. The payload names no compiler implementation file or test; done means the erroneous & before the parameter name is highlighted and the diagnostic suggests removing it.