auto merge of #8069 : erickt/rust/maikklein, r=erickt

Good evening,

This is a superset of @MaikKlein's #7969 commit, that I've fixed up to compile. I had a couple commits I wanted to do on top of @MaikKlein's work that I didn't want to bitrot.

src/test/run-fail/result-get-fail.rs

@@ -8,10 +8,10 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// error-pattern:get called on error result: ~"kitty"
+// error-pattern:get called on `Err` result: ~"kitty"
 
 use std::result;
 
 fn main() {
-  error!(result::get(&result::Err::<int,~str>(~"kitty")));
+  error!(result::Err::<int,~str>(~"kitty").get());
 }