Auto merge of #92123 - m-ou-se:thread-local-cell-methods, r=joshtriplett

Implement RFC 3184 - thread local cell methods

This implements [RFC 3184](rust-lang/rfcs#3184), with `@danielhenrymantilla's` [suggestion](rust-lang/rfcs#3184 (comment)) for the `with_` method names.

Tracking issue: #92122

Author: bors

library/std/src/lib.rs

@@ -249,6 +249,7 @@
 #![feature(const_ip)]
 #![feature(const_ipv4)]
 #![feature(const_ipv6)]
+#![feature(const_mut_refs)]
 #![feature(const_option)]
 #![feature(const_socketaddr)]
 #![feature(const_trait_impl)]