Auto merge of #136248 - matthiaskrgr:rollup-leaxgfd, r=matthiaskrgr

Rollup of 8 pull requests

Successful merges:

 - #133382 (Suggest considering casting fn item as fn pointer in more cases)
 - #136092 (Test pipes also when not running on Windows and Linux simultaneously)
 - #136190 (Remove duplicated code in RISC-V asm bad-reg test)
 - #136192 (ci: remove unused windows runner)
 - #136205 (Properly check that array length is valid type during built-in unsizing in index)
 - #136211 (Update mdbook to 0.4.44)
 - #136212 (Tweak `&mut self` suggestion span)
 - #136214 (Make crate AST mutation accessible for driver callback)

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors

examples/rustc-driver-example.rs

@@ -58,7 +58,7 @@ impl rustc_driver::Callbacks for MyCallbacks {
     fn after_crate_root_parsing(
         &mut self,
         _compiler: &Compiler,
-        krate: &rustc_ast::Crate,
+        krate: &mut rustc_ast::Crate,
     ) -> Compilation {
         for item in &krate.items {
             println!("{}", item_to_string(&item));

examples/rustc-driver-interacting-with-the-ast.rs

@@ -58,7 +58,7 @@ impl rustc_driver::Callbacks for MyCallbacks {
     fn after_crate_root_parsing(
         &mut self,
         _compiler: &Compiler,
-        krate: &rustc_ast::Crate,
+        krate: &mut rustc_ast::Crate,
     ) -> Compilation {
         for item in &krate.items {
             println!("{}", item_to_string(&item));