rollup merge of #20607: nrc/kinds

Conflicts:
	src/libcore/array.rs
	src/libcore/cell.rs
	src/libcore/prelude.rs
	src/libstd/path/posix.rs
	src/libstd/prelude/v1.rs
	src/test/compile-fail/dst-sized-trait-param.rs

src/libcore/num/mod.rs

@@ -21,7 +21,7 @@ use cmp::{PartialEq, Eq};
 use cmp::{PartialOrd, Ord};
 use intrinsics;
 use iter::IteratorExt;
-use kinds::Copy;
+use marker::Copy;
 use mem::size_of;
 use ops::{Add, Sub, Mul, Div, Rem, Neg};
 use ops::{Not, BitAnd, BitOr, BitXor, Shl, Shr, Index};
@@ -992,7 +992,7 @@ impl_to_primitive_float! { f64 }
 
 /// A generic trait for converting a number to a value.
 #[experimental = "trait is likely to be removed"]
-pub trait FromPrimitive : ::kinds::Sized {
+pub trait FromPrimitive : ::marker::Sized {
     /// Convert an `int` to return an optional value of this type. If the
     /// value cannot be represented by this value, the `None` is returned.
     #[inline]