Add #![feature(generic_arg_infer)] to core for stdarch

Author: Noratrieb

library/core/src/lib.rs

@@ -209,6 +209,7 @@
 #![feature(derive_const)]
 #![feature(doc_cfg)]
 #![feature(doc_notable_trait)]
+#![feature(generic_arg_infer)]
 #![feature(rustdoc_internals)]
 #![feature(exhaustive_patterns)]
 #![feature(doc_cfg_hide)]