Remove linked failure from the runtime

The reasons for doing this are:

* The model on which linked failure is based is inherently complex
* The implementation is also very complex, and there are few remaining who
  fully understand the implementation
* There are existing race conditions in the core context switching function of
  the scheduler, and possibly others.
* It's unclear whether this model of linked failure maps well to a 1:1 threading
  model

Linked failure is often a desired aspect of tasks, but we would like to take a
much more conservative approach in re-implementing linked failure if at all.

Closes #8674
Closes #8318
Closes #8863

1 files changed, 3 insertions, 2 deletions

diff --git a/src/test/run-fail/fail-task-name-send-str.rs b/src/test/run-fail/fail-task-name-send-str.rs
index 96fe82fa5ca..0e3ef39cd1d 100644
--- a/src/test/run-fail/fail-task-name-send-str.rs
+++ b/src/test/run-fail/fail-task-name-send-str.rs
@@ -13,7 +13,8 @@
 fn main() {
     let mut t = ::std::task::task();
     t.name("send name".to_send_str());
-    do t.spawn {
+    do t.try {
         fail!("test");
-    }
+        3
+    }.unwrap()
 }