Auto merge of rust-lang#77083 - KodrAus:revert/const-type-id, r=RalfJung

revert const_type_id stabilization

This reverts rust-lang#72488, which is currently on beta and scheduled to stabilize in `1.47.0`, based on rust-lang#75923 (comment)

It turns out we might not be quite ready to stabilize `TypeId` in const contexts before having a chance to rework its internals. Since `TypeId` is a bit of an oddity we want to be careful about how those internals are currently being relied on while making changes. That will be easier to do without having to also consider compile-time contexts.

r? `@eddyb`

Author: bors

core/src/any.rs

@@ -435,7 +435,7 @@ impl TypeId {
     /// assert_eq!(is_string(&"cookie monster".to_string()), true);
     /// ```
     #[stable(feature = "rust1", since = "1.0.0")]
-    #[rustc_const_stable(feature = "const_type_id", since = "1.46.0")]
+    #[rustc_const_unstable(feature = "const_type_id", issue = "77125")]
     pub const fn of<T: ?Sized + 'static>() -> TypeId {
         TypeId { t: intrinsics::type_id::<T>() }
     }

core/src/intrinsics.rs

@@ -807,7 +807,7 @@ extern "rust-intrinsic" {
     /// crate it is invoked in.
     ///
     /// The stabilized version of this intrinsic is [`crate::any::TypeId::of`].
-    #[rustc_const_stable(feature = "const_type_id", since = "1.46.0")]
+    #[rustc_const_unstable(feature = "const_type_id", issue = "77125")]
     pub fn type_id<T: ?Sized + 'static>() -> u64;
 
     /// A guard for unsafe functions that cannot ever be executed if `T` is uninhabited:

core/src/lib.rs

@@ -92,6 +92,7 @@
 #![feature(const_slice_ptr_len)]
 #![feature(const_size_of_val)]
 #![feature(const_align_of_val)]
+#![feature(const_type_id)]
 #![feature(const_type_name)]
 #![feature(const_likely)]
 #![feature(const_unreachable_unchecked)]