Auto merge of #42381 - Mark-Simulacrum:rollup, r=Mark-Simulacrum

Rollup of 10 pull requests

- Successful merges: #41981, #42225, #42310, #42319, #42335, #42343, #42355, #42360, #42370, #42372
- Failed merges:

src/test/parse-fail/removed-syntax-extern-const.rs

@@ -12,5 +12,5 @@
 
 extern {
     const i: isize;
-    //~^ ERROR expected one of `fn`, `pub`, `static`, or `}`, found `const`
+    //~^ ERROR extern items cannot be `const`
 }