Revert "Remove the unneeded Sized bound on TypeId creation"

This reverts commit 2404232.

Conflicts:
	src/libcore/intrinsics.rs

Author: alexcrichton

src/libcore/intrinsics.rs

@@ -42,9 +42,6 @@
 #![experimental]
 #![allow(missing_docs)]
 
-#[cfg(not(stage0))]
-use marker::Sized;
-
 pub type GlueFn = extern "Rust" fn(*const i8);
 
 #[lang="ty_desc"]
@@ -203,9 +200,6 @@ extern "rust-intrinsic" {
     /// Gets an identifier which is globally unique to the specified type. This
     /// function will return the same value for a type regardless of whichever
     /// crate it is invoked in.
-    #[cfg(not(stage0))]
-    pub fn type_id<T: ?Sized + 'static>() -> TypeId;
-    #[cfg(stage0)]
     pub fn type_id<T: 'static>() -> TypeId;
 
     /// Create a value initialized to zero.
@@ -556,19 +550,9 @@ pub struct TypeId {
 }
 
 impl TypeId {
-    /// Returns the `TypeId` of the type this generic function has been
-    /// instantiated with
-    #[cfg(stage0)]
+    /// Returns the `TypeId` of the type this generic function has been instantiated with
     pub fn of<T: 'static>() -> TypeId {
         unsafe { type_id::<T>() }
     }
-
-    /// Returns the `TypeId` of the type this generic function has been
-    /// instantiated with
-    #[cfg(not(stage0))]
-    pub fn of<T: ?Sized + 'static>() -> TypeId {
-        unsafe { type_id::<T>() }
-    }
-
     pub fn hash(&self) -> u64 { self.t }
 }