Remove a clippy test that doesn't apply anymore

Author: compiler-errors

tests/ui/into_iter_on_ref.fixed

@@ -11,7 +11,6 @@ fn main() {
 
     let _ = vec![1, 2, 3].into_iter();
     let _ = (&vec![1, 2, 3]).iter(); //~ ERROR: equivalent to `.iter()
-    let _ = vec![1, 2, 3].into_boxed_slice().iter(); //~ ERROR: equivalent to `.iter()
     let _ = std::rc::Rc::from(&[X][..]).iter(); //~ ERROR: equivalent to `.iter()
     let _ = std::sync::Arc::from(&[X][..]).iter(); //~ ERROR: equivalent to `.iter()
 

tests/ui/into_iter_on_ref.rs

@@ -11,7 +11,6 @@ fn main() {
 
     let _ = vec![1, 2, 3].into_iter();
     let _ = (&vec![1, 2, 3]).into_iter(); //~ ERROR: equivalent to `.iter()
-    let _ = vec![1, 2, 3].into_boxed_slice().into_iter(); //~ ERROR: equivalent to `.iter()
     let _ = std::rc::Rc::from(&[X][..]).into_iter(); //~ ERROR: equivalent to `.iter()
     let _ = std::sync::Arc::from(&[X][..]).into_iter(); //~ ERROR: equivalent to `.iter()
 

tests/ui/into_iter_on_ref.stderr

@@ -8,160 +8,154 @@ LL |     let _ = (&vec![1, 2, 3]).into_iter();
    = help: to override `-D warnings` add `#[allow(clippy::into_iter_on_ref)]`
 
 error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `slice`
-  --> tests/ui/into_iter_on_ref.rs:14:46
-   |
-LL |     let _ = vec![1, 2, 3].into_boxed_slice().into_iter();
-   |                                              ^^^^^^^^^ help: call directly: `iter`
-
-error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `slice`
-  --> tests/ui/into_iter_on_ref.rs:15:41
+  --> tests/ui/into_iter_on_ref.rs:14:41
    |
 LL |     let _ = std::rc::Rc::from(&[X][..]).into_iter();
    |                                         ^^^^^^^^^ help: call directly: `iter`
 
 error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `slice`
-  --> tests/ui/into_iter_on_ref.rs:16:44
+  --> tests/ui/into_iter_on_ref.rs:15:44
    |
 LL |     let _ = std::sync::Arc::from(&[X][..]).into_iter();
    |                                            ^^^^^^^^^ help: call directly: `iter`
 
 error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `array`
-  --> tests/ui/into_iter_on_ref.rs:18:32
+  --> tests/ui/into_iter_on_ref.rs:17:32
    |
 LL |     let _ = (&&&&&&&[1, 2, 3]).into_iter();
    |                                ^^^^^^^^^ help: call directly: `iter`
 
 error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `array`
-  --> tests/ui/into_iter_on_ref.rs:19:36
+  --> tests/ui/into_iter_on_ref.rs:18:36
    |
 LL |     let _ = (&&&&mut &&&[1, 2, 3]).into_iter();
    |                                    ^^^^^^^^^ help: call directly: `iter`
 
 error: this `.into_iter()` call is equivalent to `.iter_mut()` and will not consume the `array`
-  --> tests/ui/into_iter_on_ref.rs:20:40
+  --> tests/ui/into_iter_on_ref.rs:19:40
    |
 LL |     let _ = (&mut &mut &mut [1, 2, 3]).into_iter();
    |                                        ^^^^^^^^^ help: call directly: `iter_mut`
 
 error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `Option`
-  --> tests/ui/into_iter_on_ref.rs:22:24
+  --> tests/ui/into_iter_on_ref.rs:21:24
    |
 LL |     let _ = (&Some(4)).into_iter();
    |                        ^^^^^^^^^ help: call directly: `iter`
 
 error: this `.into_iter()` call is equivalent to `.iter_mut()` and will not consume the `Option`
-  --> tests/ui/into_iter_on_ref.rs:23:28
+  --> tests/ui/into_iter_on_ref.rs:22:28
    |
 LL |     let _ = (&mut Some(5)).into_iter();
    |                            ^^^^^^^^^ help: call directly: `iter_mut`
 
 error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `Result`
-  --> tests/ui/into_iter_on_ref.rs:24:32
+  --> tests/ui/into_iter_on_ref.rs:23:32
    |
 LL |     let _ = (&Ok::<_, i32>(6)).into_iter();
    |                                ^^^^^^^^^ help: call directly: `iter`
 
 error: this `.into_iter()` call is equivalent to `.iter_mut()` and will not consume the `Result`
-  --> tests/ui/into_iter_on_ref.rs:25:37
+  --> tests/ui/into_iter_on_ref.rs:24:37
    |
 LL |     let _ = (&mut Err::<i32, _>(7)).into_iter();
    |                                     ^^^^^^^^^ help: call directly: `iter_mut`
 
 error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `Vec`
-  --> tests/ui/into_iter_on_ref.rs:26:34
+  --> tests/ui/into_iter_on_ref.rs:25:34
    |
 LL |     let _ = (&Vec::<i32>::new()).into_iter();
    |                                  ^^^^^^^^^ help: call directly: `iter`
 
 error: this `.into_iter()` call is equivalent to `.iter_mut()` and will not consume the `Vec`
-  --> tests/ui/into_iter_on_ref.rs:27:38
+  --> tests/ui/into_iter_on_ref.rs:26:38
    |
 LL |     let _ = (&mut Vec::<i32>::new()).into_iter();
    |                                      ^^^^^^^^^ help: call directly: `iter_mut`
 
 error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `BTreeMap`
-  --> tests/ui/into_iter_on_ref.rs:28:44
+  --> tests/ui/into_iter_on_ref.rs:27:44
    |
 LL |     let _ = (&BTreeMap::<i32, u64>::new()).into_iter();
    |                                            ^^^^^^^^^ help: call directly: `iter`
 
 error: this `.into_iter()` call is equivalent to `.iter_mut()` and will not consume the `BTreeMap`
-  --> tests/ui/into_iter_on_ref.rs:29:48
+  --> tests/ui/into_iter_on_ref.rs:28:48
    |
 LL |     let _ = (&mut BTreeMap::<i32, u64>::new()).into_iter();
    |                                                ^^^^^^^^^ help: call directly: `iter_mut`
 
 error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `VecDeque`
-  --> tests/ui/into_iter_on_ref.rs:30:39
+  --> tests/ui/into_iter_on_ref.rs:29:39
    |
 LL |     let _ = (&VecDeque::<i32>::new()).into_iter();
    |                                       ^^^^^^^^^ help: call directly: `iter`
 
 error: this `.into_iter()` call is equivalent to `.iter_mut()` and will not consume the `VecDeque`
-  --> tests/ui/into_iter_on_ref.rs:31:43
+  --> tests/ui/into_iter_on_ref.rs:30:43
    |
 LL |     let _ = (&mut VecDeque::<i32>::new()).into_iter();
    |                                           ^^^^^^^^^ help: call directly: `iter_mut`
 
 error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `LinkedList`
-  --> tests/ui/into_iter_on_ref.rs:32:41
+  --> tests/ui/into_iter_on_ref.rs:31:41
    |
 LL |     let _ = (&LinkedList::<i32>::new()).into_iter();
    |                                         ^^^^^^^^^ help: call directly: `iter`
 
 error: this `.into_iter()` call is equivalent to `.iter_mut()` and will not consume the `LinkedList`
-  --> tests/ui/into_iter_on_ref.rs:33:45
+  --> tests/ui/into_iter_on_ref.rs:32:45
    |
 LL |     let _ = (&mut LinkedList::<i32>::new()).into_iter();
    |                                             ^^^^^^^^^ help: call directly: `iter_mut`
 
 error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `HashMap`
-  --> tests/ui/into_iter_on_ref.rs:34:43
+  --> tests/ui/into_iter_on_ref.rs:33:43
    |
 LL |     let _ = (&HashMap::<i32, u64>::new()).into_iter();
    |                                           ^^^^^^^^^ help: call directly: `iter`
 
 error: this `.into_iter()` call is equivalent to `.iter_mut()` and will not consume the `HashMap`
-  --> tests/ui/into_iter_on_ref.rs:35:47
+  --> tests/ui/into_iter_on_ref.rs:34:47
    |
 LL |     let _ = (&mut HashMap::<i32, u64>::new()).into_iter();
    |                                               ^^^^^^^^^ help: call directly: `iter_mut`
 
 error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `BTreeSet`
-  --> tests/ui/into_iter_on_ref.rs:37:39
+  --> tests/ui/into_iter_on_ref.rs:36:39
    |
 LL |     let _ = (&BTreeSet::<i32>::new()).into_iter();
    |                                       ^^^^^^^^^ help: call directly: `iter`
 
 error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `BinaryHeap`
-  --> tests/ui/into_iter_on_ref.rs:38:41
+  --> tests/ui/into_iter_on_ref.rs:37:41
    |
 LL |     let _ = (&BinaryHeap::<i32>::new()).into_iter();
    |                                         ^^^^^^^^^ help: call directly: `iter`
 
 error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `HashSet`
-  --> tests/ui/into_iter_on_ref.rs:39:38
+  --> tests/ui/into_iter_on_ref.rs:38:38
    |
 LL |     let _ = (&HashSet::<i32>::new()).into_iter();
    |                                      ^^^^^^^^^ help: call directly: `iter`
 
 error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `Path`
-  --> tests/ui/into_iter_on_ref.rs:40:43
+  --> tests/ui/into_iter_on_ref.rs:39:43
    |
 LL |     let _ = std::path::Path::new("12/34").into_iter();
    |                                           ^^^^^^^^^ help: call directly: `iter`
 
 error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `PathBuf`
-  --> tests/ui/into_iter_on_ref.rs:41:47
+  --> tests/ui/into_iter_on_ref.rs:40:47
    |
 LL |     let _ = std::path::PathBuf::from("12/34").into_iter();
    |                                               ^^^^^^^^^ help: call directly: `iter`
 
 error: this `.into_iter()` call is equivalent to `.iter()` and will not consume the `array`
-  --> tests/ui/into_iter_on_ref.rs:43:26
+  --> tests/ui/into_iter_on_ref.rs:42:26
    |
 LL |     let _ = (&[1, 2, 3]).into_iter().next();
    |                          ^^^^^^^^^ help: call directly: `iter`
 
-error: aborting due to 27 previous errors
+error: aborting due to 26 previous errors