Fixup tests

Author: goldsteinn

tests/mir-opt/issue_76432.test.SimplifyComparisonIntegral.panic-abort.diff

@@ -9,7 +9,7 @@
       let _4: [T; 3];
       let mut _5: usize;
       let mut _6: bool;
-      let _10: !;
+      let mut _10: !;
       scope 1 {
           debug v => _2;
           let _7: &T;

tests/mir-opt/issue_76432.test.SimplifyComparisonIntegral.panic-unwind.diff

@@ -9,7 +9,7 @@
       let _4: [T; 3];
       let mut _5: usize;
       let mut _6: bool;
-      let _10: !;
+      let mut _10: !;
       scope 1 {
           debug v => _2;
           let _7: &T;

tests/ui/never_type/issue-5500-1.stderr

@@ -0,0 +1,14 @@
+error[E0308]: mismatched types
+  --> $DIR/issue-5500-1.rs:10:18
+   |
+LL |     _iter.node = &panic!()
+   |     ----------   ^^^^^^^^^ expected `&usize`, found `&!`
+   |     |
+   |     expected due to the type of this binding
+   |
+   = note: expected reference `&usize`
+              found reference `&!`
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0308`.

tests/ui/proc-macro/quote-debug.stdout

@@ -32,9 +32,7 @@ fn main() {
                                                 (iter.next(), iter.next()) {
                                             lit.set_span(crate::Span::recover_proc_macro_span(2));
                                             lit
-                                        } else {
-                                           { ::core::panicking::unreachable_cold_explicit(); }
-                                       }
+                                        } else { ::core::panicking::unreachable_cold_explicit() }
                                 })),
                         crate::TokenStream::from(crate::TokenTree::Punct(crate::Punct::new(';',
                                     crate::Spacing::Alone)))].iter().cloned().collect::<crate::TokenStream>()