Moved unfixable tests to separate file because ui_test otherwise would fail

Author: rommeld

tests/ui/chunks_exact_with_const_size.rs

@@ -36,17 +36,4 @@ fn main() {
         .collect::<Vec<_>>()
         .chunks_exact(2);
     //~^ chunks_exact_with_const_size
-
-    // Should trigger lint with help message only (not suggestion) - stored in variable
-    let mut chunk_iter = slice.chunks_exact(CHUNK_SIZE);
-    //~^ chunks_exact_with_const_size
-    for chunk in chunk_iter.by_ref() {}
-    let _remainder = chunk_iter.remainder();
-
-    // Similar for mutable version - help message only
-    let mut arr2 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
-    let mut chunk_iter = arr2.chunks_exact_mut(CHUNK_SIZE);
-    //~^ chunks_exact_with_const_size
-    for chunk in chunk_iter.by_ref() {}
-    let _remainder = chunk_iter.into_remainder();
 }

tests/ui/chunks_exact_with_const_size.stderr

@@ -45,23 +45,5 @@ LL |         .chunks_exact(2);
    = help: consider using `as_chunks::<2>()` instead
    = note: you can access the chunks using `result.0.iter()`, and the remainder using `result.1`
 
-error: using `chunks_exact` with a constant chunk size
-  --> tests/ui/chunks_exact_with_const_size.rs:41:32
-   |
-LL |     let mut chunk_iter = slice.chunks_exact(CHUNK_SIZE);
-   |                                ^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = help: consider using `as_chunks::<CHUNK_SIZE>()` instead
-   = note: you can access the chunks using `chunk_iter.0.iter()`, and the remainder using `chunk_iter.1`
-
-error: using `chunks_exact_mut` with a constant chunk size
-  --> tests/ui/chunks_exact_with_const_size.rs:48:31
-   |
-LL |     let mut chunk_iter = arr2.chunks_exact_mut(CHUNK_SIZE);
-   |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = help: consider using `as_chunks_mut::<CHUNK_SIZE>()` instead
-   = note: you can access the chunks using `chunk_iter.0.iter()`, and the remainder using `chunk_iter.1`
-
-error: aborting due to 7 previous errors
+error: aborting due to 5 previous errors
 

tests/ui/chunks_exact_with_const_size_unfixable.rs

@@ -0,0 +1,20 @@
+#![warn(clippy::chunks_exact_with_const_size)]
+#![allow(unused)]
+
+fn main() {
+    let slice = [1, 2, 3, 4, 5, 6, 7, 8];
+    const CHUNK_SIZE: usize = 4;
+
+    // Should trigger lint with help message only (not suggestion) - stored in variable
+    let mut chunk_iter = slice.chunks_exact(CHUNK_SIZE);
+    //~^ chunks_exact_with_const_size
+    for chunk in chunk_iter.by_ref() {}
+    let _remainder = chunk_iter.remainder();
+
+    // Similar for mutable version - help message only
+    let mut arr2 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
+    let mut chunk_iter = arr2.chunks_exact_mut(CHUNK_SIZE);
+    //~^ chunks_exact_with_const_size
+    for chunk in chunk_iter.by_ref() {}
+    let _remainder = chunk_iter.into_remainder();
+}

tests/ui/chunks_exact_with_const_size_unfixable.stderr

@@ -0,0 +1,22 @@
+error: using `chunks_exact` with a constant chunk size
+  --> tests/ui/chunks_exact_with_const_size_unfixable.rs:9:32
+   |
+LL |     let mut chunk_iter = slice.chunks_exact(CHUNK_SIZE);
+   |                                ^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = help: consider using `as_chunks::<CHUNK_SIZE>()` instead
+   = note: you can access the chunks using `chunk_iter.0.iter()`, and the remainder using `chunk_iter.1`
+   = note: `-D clippy::chunks-exact-with-const-size` implied by `-D warnings`
+   = help: to override `-D warnings` add `#[allow(clippy::chunks_exact_with_const_size)]`
+
+error: using `chunks_exact_mut` with a constant chunk size
+  --> tests/ui/chunks_exact_with_const_size_unfixable.rs:16:31
+   |
+LL |     let mut chunk_iter = arr2.chunks_exact_mut(CHUNK_SIZE);
+   |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = help: consider using `as_chunks_mut::<CHUNK_SIZE>()` instead
+   = note: you can access the chunks using `chunk_iter.0.iter()`, and the remainder using `chunk_iter.1`
+
+error: aborting due to 2 previous errors
+