Update tests for revert of never type stabilization

Author: Mark-Simulacrum

tests/ui/infallible_destructuring_match.fixed

@@ -1,5 +1,5 @@
 // run-rustfix
-#![feature(exhaustive_patterns)]
+#![feature(exhaustive_patterns, never_type)]
 #![allow(dead_code, unreachable_code, unused_variables)]
 #![allow(clippy::let_and_return)]
 

tests/ui/infallible_destructuring_match.rs

@@ -1,5 +1,5 @@
 // run-rustfix
-#![feature(exhaustive_patterns)]
+#![feature(exhaustive_patterns, never_type)]
 #![allow(dead_code, unreachable_code, unused_variables)]
 #![allow(clippy::let_and_return)]
 

tests/ui/must_use_candidates.fixed

@@ -1,4 +1,5 @@
 // run-rustfix
+#![feature(never_type)]
 #![allow(unused_mut)]
 #![warn(clippy::must_use_candidate)]
 use std::rc::Rc;

tests/ui/must_use_candidates.rs

@@ -1,4 +1,5 @@
 // run-rustfix
+#![feature(never_type)]
 #![allow(unused_mut)]
 #![warn(clippy::must_use_candidate)]
 use std::rc::Rc;

tests/ui/must_use_candidates.stderr

@@ -1,31 +1,31 @@
 error: this function could have a `#[must_use]` attribute
-  --> $DIR/must_use_candidates.rs:11:1
+  --> $DIR/must_use_candidates.rs:12:1
    |
 LL | pub fn pure(i: u8) -> u8 {
    | ^^^^^^^^^^^^^^^^^^^^^^^^ help: add the attribute: `#[must_use] pub fn pure(i: u8) -> u8`
    |
    = note: `-D clippy::must-use-candidate` implied by `-D warnings`
 
 error: this method could have a `#[must_use]` attribute
-  --> $DIR/must_use_candidates.rs:16:5
+  --> $DIR/must_use_candidates.rs:17:5
    |
 LL |     pub fn inherent_pure(&self) -> u8 {
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add the attribute: `#[must_use] pub fn inherent_pure(&self) -> u8`
 
 error: this function could have a `#[must_use]` attribute
-  --> $DIR/must_use_candidates.rs:47:1
+  --> $DIR/must_use_candidates.rs:48:1
    |
 LL | pub fn with_marker(_d: std::marker::PhantomData<&mut u32>) -> bool {
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add the attribute: `#[must_use] pub fn with_marker(_d: std::marker::PhantomData<&mut u32>) -> bool`
 
 error: this function could have a `#[must_use]` attribute
-  --> $DIR/must_use_candidates.rs:59:1
+  --> $DIR/must_use_candidates.rs:60:1
    |
 LL | pub fn rcd(_x: Rc<u32>) -> bool {
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add the attribute: `#[must_use] pub fn rcd(_x: Rc<u32>) -> bool`
 
 error: this function could have a `#[must_use]` attribute
-  --> $DIR/must_use_candidates.rs:67:1
+  --> $DIR/must_use_candidates.rs:68:1
    |
 LL | pub fn arcd(_x: Arc<u32>) -> bool {
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: add the attribute: `#[must_use] pub fn arcd(_x: Arc<u32>) -> bool`

tests/ui/result_map_unit_fn_unfixable.rs

@@ -1,4 +1,5 @@
 #![warn(clippy::result_map_unit_fn)]
+#![feature(never_type)]
 #![allow(unused)]
 
 fn do_nothing<T>(_: T) {}

tests/ui/result_map_unit_fn_unfixable.stderr

@@ -1,23 +1,23 @@
 error[E0425]: cannot find value `x` in this scope
-  --> $DIR/result_map_unit_fn_unfixable.rs:16:5
+  --> $DIR/result_map_unit_fn_unfixable.rs:17:5
    |
 LL |     x.field.map(|value| { do_nothing(value); do_nothing(value) });
    |     ^ not found in this scope
 
 error[E0425]: cannot find value `x` in this scope
-  --> $DIR/result_map_unit_fn_unfixable.rs:18:5
+  --> $DIR/result_map_unit_fn_unfixable.rs:19:5
    |
 LL |     x.field.map(|value| if value > 0 { do_nothing(value); do_nothing(value) });
    |     ^ not found in this scope
 
 error[E0425]: cannot find value `x` in this scope
-  --> $DIR/result_map_unit_fn_unfixable.rs:22:5
+  --> $DIR/result_map_unit_fn_unfixable.rs:23:5
    |
 LL |     x.field.map(|value| {
    |     ^ not found in this scope
 
 error[E0425]: cannot find value `x` in this scope
-  --> $DIR/result_map_unit_fn_unfixable.rs:26:5
+  --> $DIR/result_map_unit_fn_unfixable.rs:27:5
    |
 LL |     x.field.map(|value| { do_nothing(value); do_nothing(value); });
    |     ^ not found in this scope