librustc (RFC #34): Implement the new `Index` and `IndexMut` traits.

This will break code that used the old `Index` trait. Change this code
to use the new `Index` traits. For reference, here are their signatures:

    pub trait Index<Index,Result> {
        fn index<'a>(&'a self, index: &Index) -> &'a Result;
    }
    pub trait IndexMut<Index,Result> {
        fn index_mut<'a>(&'a mut self, index: &Index) -> &'a mut Result;
    }

Closes #6515.

[breaking-change]

1 files changed, 6 insertions, 2 deletions

diff --git a/src/test/run-pass/operator-overloading.rs b/src/test/run-pass/operator-overloading.rs
index 00e19b8481f..a36d8132b26 100644
--- a/src/test/run-pass/operator-overloading.rs
+++ b/src/test/run-pass/operator-overloading.rs
@@ -43,8 +43,12 @@ impl ops::Not<Point> for Point {
 }
 
 impl ops::Index<bool,int> for Point {
-    fn index(&self, x: &bool) -> int {
-        if *x { self.x } else { self.y }
+    fn index<'a>(&'a self, x: &bool) -> &'a int {
+        if *x {
+            &self.x
+        } else {
+            &self.y
+        }
     }
 }