rollup merge of #20754: nikomatsakis/int-feature

Conflicts:
	src/test/compile-fail/borrowck-move-out-of-overloaded-auto-deref.rs
	src/test/compile-fail/issue-2590.rs
	src/test/compile-fail/lint-stability.rs
	src/test/compile-fail/slice-mut-2.rs
	src/test/compile-fail/std-uncopyable-atomics.rs

src/libcore/lib.rs

@@ -59,9 +59,10 @@
 #![no_std]
 #![allow(unknown_features, raw_pointer_derive)]
 #![cfg_attr(stage0, allow(unused_attributes))]
-#![feature(intrinsics, lang_items)]
+#![allow(unknown_features)] #![feature(intrinsics, lang_items)]
 #![feature(simd, unsafe_destructor, slicing_syntax)]
 #![feature(unboxed_closures)]
+#![allow(unknown_features)] #![feature(int_uint)]
 #![deny(missing_docs)]
 
 #[macro_use]

src/libcore/macros.rs

@@ -15,7 +15,7 @@ macro_rules! panic {
         panic!("explicit panic")
     );
     ($msg:expr) => ({
-        static _MSG_FILE_LINE: (&'static str, &'static str, uint) = ($msg, file!(), line!());
+        static _MSG_FILE_LINE: (&'static str, &'static str, usize) = ($msg, file!(), line!());
         ::core::panicking::panic(&_MSG_FILE_LINE)
     });
     ($fmt:expr, $($arg:tt)*) => ({
@@ -23,7 +23,7 @@ macro_rules! panic {
         // used inside a dead function. Just `#[allow(dead_code)]` is
         // insufficient, since the user may have
         // `#[forbid(dead_code)]` and which cannot be overridden.
-        static _FILE_LINE: (&'static str, uint) = (file!(), line!());
+        static _FILE_LINE: (&'static str, usize) = (file!(), line!());
         ::core::panicking::panic_fmt(format_args!($fmt, $($arg)*), &_FILE_LINE)
     });
 }