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/array.rs

@@ -17,7 +17,7 @@
 use clone::Clone;
 use cmp::{PartialEq, Eq, PartialOrd, Ord, Ordering};
 use fmt;
-use kinds::Copy;
+use marker::Copy;
 use ops::{Deref, FullRange, Index};
 use option::Option;