Rollup merge of #144897 - fee1-dead-contrib:raw_lifetimes_printing, r=fmease

print raw lifetime idents with r#

This replaces rust-lang/rust#143185 and fixes rust-lang/rust#143150

cc ``@fmease``

compiler/rustc_parse/src/parser/expr.rs

@@ -3094,7 +3094,7 @@ impl<'a> Parser<'a> {
         if let Some((ident, is_raw)) = self.token.lifetime() {
             // Disallow `'fn`, but with a better error message than `expect_lifetime`.
             if matches!(is_raw, IdentIsRaw::No) && ident.without_first_quote().is_reserved() {
-                self.dcx().emit_err(errors::InvalidLabel { span: ident.span, name: ident.name });
+                self.dcx().emit_err(errors::KeywordLabel { span: ident.span });
             }
 
             self.bump();