rollup merge of #22210: aturon/stab-final-borrow

Conflicts:
	src/libcollections/btree/map.rs
	src/libcollections/str.rs
	src/libcollections/vec.rs
	src/libcore/borrow.rs
	src/libcore/hash/mod.rs
	src/libstd/collections/hash/map.rs
	src/libstd/collections/hash/set.rs

src/test/compile-fail/ufcs-qpath-missing-params.rs

@@ -12,6 +12,5 @@ use std::borrow::IntoCow;
 
 fn main() {
     <String as IntoCow>::into_cow("foo".to_string());
-    //~^ ERROR wrong number of type arguments: expected 2, found 0
+    //~^ ERROR wrong number of type arguments: expected 1, found 0
 }
-

src/test/run-make/save-analysis/foo.rs

@@ -34,7 +34,7 @@ use std::mem::size_of;
 static uni: &'static str = "Les Miséééééééérables";
 static yy: usize = 25;
 
-static bob: Option<std::vec::CowVec<'static, isize>> = None;
+static bob: Option<std::borrow::Cow<'static, [isize]>> = None;
 
 // buglink test - see issue #1337.
 

src/test/run-pass/const-polymorphic-paths.rs

@@ -100,8 +100,8 @@ tests! {
     Add::add, fn(i32, i32) -> i32, (5, 6);
     <i32 as Add<_>>::add, fn(i32, i32) -> i32, (5, 6);
     <i32 as Add<i32>>::add, fn(i32, i32) -> i32, (5, 6);
-    <String as IntoCow<_, _>>::into_cow, fn(String) -> Cow<'static, String, str>,
+    <String as IntoCow<_>>::into_cow, fn(String) -> Cow<'static, str>,
         ("foo".to_string());
-    <String as IntoCow<'static, _, _>>::into_cow, fn(String) -> Cow<'static, String, str>,
+    <String as IntoCow<'static, _>>::into_cow, fn(String) -> Cow<'static, str>,
         ("foo".to_string());
 }

src/test/run-pass/send_str_hashmap.rs

@@ -13,7 +13,7 @@ extern crate collections;
 use std::collections::HashMap;
 use std::borrow::{Cow, IntoCow};
 
-type SendStr = Cow<'static, String, str>;
+type SendStr = Cow<'static, str>;
 
 pub fn main() {
     let mut map: HashMap<SendStr, uint> = HashMap::new();

src/test/run-pass/send_str_treemap.rs

@@ -13,7 +13,7 @@ extern crate collections;
 use self::collections::BTreeMap;
 use std::borrow::{Cow, IntoCow};
 
-type SendStr = Cow<'static, String, str>;
+type SendStr = Cow<'static, str>;
 
 pub fn main() {
     let mut map: BTreeMap<SendStr, uint> = BTreeMap::new();

src/test/run-pass/traits-issue-22019.rs

@@ -23,18 +23,18 @@ pub type Node<'a> = &'a CFGNode;
 
 pub trait GraphWalk<'c, N> {
     /// Returns all the nodes in this graph.
-    fn nodes(&'c self) where [N]:ToOwned<Vec<N>>;
+    fn nodes(&'c self) where [N]:ToOwned<Owned=Vec<N>>;
 }
 
 impl<'g> GraphWalk<'g, Node<'g>> for u32
 {
-    fn nodes(&'g self) where [Node<'g>]:ToOwned<Vec<Node<'g>>>
+    fn nodes(&'g self) where [Node<'g>]:ToOwned<Owned=Vec<Node<'g>>>
     { loop { } }
 }
 
 impl<'h> GraphWalk<'h, Node<'h>> for u64
 {
-    fn nodes(&'h self) where [Node<'h>]:ToOwned<Vec<Node<'h>>>
+    fn nodes(&'h self) where [Node<'h>]:ToOwned<Owned=Vec<Node<'h>>>
     { loop { } }
 }