E0529 should suggest turning the matched Vec into a slice

[estebank]

error[E0529]: expected an array or slice, found `std::vec::Vec<{integer}>`
  --> src/test/ui/suggestions/vec-macro-in-pattern.fixed:4:14
   |
LL |         Some([x]) => ()
   |              ^^^ pattern cannot match with input type `std::vec::Vec<{integer}>`

error: aborting due to previous error

CC #63399

[gregberns]

Just ran into this. Would be helpful to explain how to turn it into a slice in the explanation. In my case: match &rows[..] { [value1] ...., I had to &rows[..]. As some one relatively new, I'd have to google how to transform Some([x]) into a slice. When the suggestion on what to try is in the error it saves so much time :)
Thanks for a great language!!

[estebank]

Current output for the base case

error[E0529]: expected an array or slice, found `Vec<{integer}>`
 --> src/main.rs:4:9
  |
3 |     match x {
  |           - help: consider slicing here: `x[..]`
4 |         [..] => {}
  |         ^^^^ pattern cannot match with input type `Vec<{integer}>`

and for the option wrapped case:

error[E0529]: expected an array or slice, found `Vec<{integer}>`
 --> src/main.rs:4:14
  |
3 |     match Some(x) {
  |           ------- help: consider using `as_deref` here: `Some(x).as_deref()`
4 |         Some([..]) => {}
  |              ^^^^ pattern cannot match with input type `Vec<{integer}>`