Alphabetize features.

compiler/rustc_ty_utils/src/lib.rs

@@ -10,11 +10,11 @@
 #![allow(internal_features)]
 #![feature(assert_matches)]
 #![feature(associated_type_defaults)]
+#![feature(box_patterns)]
+#![feature(if_let_guard)]
 #![feature(iterator_try_collect)]
 #![feature(let_chains)]
-#![feature(if_let_guard)]
 #![feature(never_type)]
-#![feature(box_patterns)]
 #![recursion_limit = "256"]
 #![deny(rustc::untranslatable_diagnostic)]
 #![deny(rustc::diagnostic_outside_of_impl)]