Rename edition 2021 fail test

Author: Jules-Bertholet

tests/ui/match/ref_pat_eat_one_layer_2024/ref_pat_eat_one_layer_2021.rs renamed to tests/ui/match/ref_pat_eat_one_layer_2024/ref_pat_eat_one_layer_2021_fail.rs

@@ -1,5 +1,5 @@
 error[E0308]: mismatched types
-  --> $DIR/ref_pat_eat_one_layer_2021.rs:5:22
+  --> $DIR/ref_pat_eat_one_layer_2021_fail.rs:5:22
    |
 LL |     if let Some(Some(&x)) = &Some(&Some(0)) {
    |                      ^^     --------------- this expression has type `&Option<&Option<{integer}>>`
@@ -14,7 +14,7 @@ LL |     if let Some(Some(x)) = &Some(&Some(0)) {
    |                      ~
 
 error[E0308]: mismatched types
-  --> $DIR/ref_pat_eat_one_layer_2021.rs:10:23
+  --> $DIR/ref_pat_eat_one_layer_2021_fail.rs:10:23
    |
 LL |         let _: &u32 = x;
    |                ----   ^ expected `&u32`, found integer
@@ -27,7 +27,7 @@ LL |         let _: &u32 = &x;
    |                       +
 
 error[E0308]: mismatched types
-  --> $DIR/ref_pat_eat_one_layer_2021.rs:13:23
+  --> $DIR/ref_pat_eat_one_layer_2021_fail.rs:13:23
    |
 LL |     if let Some(Some(&&x)) = &Some(Some(&0)) {
    |                       ^^     --------------- this expression has type `&Option<Option<&{integer}>>`
@@ -43,7 +43,7 @@ LL +     if let Some(Some(&x)) = &Some(Some(&0)) {
    |
 
 error[E0308]: mismatched types
-  --> $DIR/ref_pat_eat_one_layer_2021.rs:17:17
+  --> $DIR/ref_pat_eat_one_layer_2021_fail.rs:17:17
    |
 LL |     if let Some(&Some(x)) = &Some(Some(0)) {
    |                 ^^^^^^^^    -------------- this expression has type `&Option<Option<{integer}>>`
@@ -54,7 +54,7 @@ LL |     if let Some(&Some(x)) = &Some(Some(0)) {
            found reference `&_`
 
 error[E0308]: mismatched types
-  --> $DIR/ref_pat_eat_one_layer_2021.rs:21:22
+  --> $DIR/ref_pat_eat_one_layer_2021_fail.rs:21:22
    |
 LL |     if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) {
    |                      ^^^^^^     ----------------------- this expression has type `&mut Option<&mut Option<{integer}>>`
@@ -64,7 +64,7 @@ LL |     if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) {
    = note:           expected type `{integer}`
            found mutable reference `&mut _`
 note: to declare a mutable binding use: `mut x`
-  --> $DIR/ref_pat_eat_one_layer_2021.rs:21:22
+  --> $DIR/ref_pat_eat_one_layer_2021_fail.rs:21:22
    |
 LL |     if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) {
    |                      ^^^^^^
@@ -74,7 +74,7 @@ LL |     if let Some(Some(x)) = &mut Some(&mut Some(0)) {
    |                      ~
 
 error[E0308]: mismatched types
-  --> $DIR/ref_pat_eat_one_layer_2021.rs:25:22
+  --> $DIR/ref_pat_eat_one_layer_2021_fail.rs:25:22
    |
 LL |     if let Some(Some(&x)) = &Some(&Some(0)) {
    |                      ^^     --------------- this expression has type `&Option<&Option<{integer}>>`
@@ -89,7 +89,7 @@ LL |     if let Some(Some(x)) = &Some(&Some(0)) {
    |                      ~
 
 error[E0308]: mismatched types
-  --> $DIR/ref_pat_eat_one_layer_2021.rs:29:27
+  --> $DIR/ref_pat_eat_one_layer_2021_fail.rs:29:27
    |
 LL |     if let Some(&mut Some(&x)) = &Some(&mut Some(0)) {
    |                           ^^     ------------------- this expression has type `&Option<&mut Option<{integer}>>`
@@ -104,7 +104,7 @@ LL |     if let Some(&mut Some(x)) = &Some(&mut Some(0)) {
    |                           ~
 
 error[E0308]: mismatched types
-  --> $DIR/ref_pat_eat_one_layer_2021.rs:33:23
+  --> $DIR/ref_pat_eat_one_layer_2021_fail.rs:33:23
    |
 LL |     if let Some(&Some(&mut x)) = &mut Some(&Some(0)) {
    |                       ^^^^^^     ------------------- this expression has type `&mut Option<&Option<{integer}>>`
@@ -114,7 +114,7 @@ LL |     if let Some(&Some(&mut x)) = &mut Some(&Some(0)) {
    = note:           expected type `{integer}`
            found mutable reference `&mut _`
 note: to declare a mutable binding use: `mut x`
-  --> $DIR/ref_pat_eat_one_layer_2021.rs:33:23
+  --> $DIR/ref_pat_eat_one_layer_2021_fail.rs:33:23
    |
 LL |     if let Some(&Some(&mut x)) = &mut Some(&Some(0)) {
    |                       ^^^^^^