Rollup merge of #100723 - 5225225:the-easy-ones, r=compiler-errors

Add the diagnostic translation lints to crates that don't emit them

Some of these have a note saying that they should build on a stable compiler, does that mean they shouldn't get these lints? Or can we cfg them out on those?

Author: matthiaskrgr

src/lib.rs

@@ -273,6 +273,8 @@
     html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/",
     test(attr(allow(unused_variables), deny(warnings)))
 )]
+#![deny(rustc::untranslatable_diagnostic)]
+#![deny(rustc::diagnostic_outside_of_impl)]
 
 use LabelText::*;