Auto merge of #104048 - cjgillot:split-lifetime, r=compiler-errors

Separate lifetime ident from lifetime resolution in HIR

Drive-by: change how suggested generic args are computed.
Fixes https://github.com/rust-lang/rust/issues/103815

I recommend reviewing commit-by-commit.

compiler/rustc_hir_pretty/src/lib.rs

@@ -2159,7 +2159,7 @@ impl<'a> State<'a> {
     }
 
     pub fn print_lifetime(&mut self, lifetime: &hir::Lifetime) {
-        self.print_ident(lifetime.name.ident())
+        self.print_ident(lifetime.ident)
     }
 
     pub fn print_where_clause(&mut self, generics: &hir::Generics<'_>) {