Added a test case for #507

src/test/run-pass/issue-507.rs

@@ -0,0 +1,34 @@
+
+/* 
+   This is a test case for Issue 507.
+
+   https://github.com/graydon/rust/issues/507
+*/
+
+use std;
+
+import std::task::join;
+
+fn grandchild(chan[int] c) {
+  c <| 42;
+}
+
+fn child(chan[int] c) {
+  auto _grandchild = spawn grandchild(c);
+  join(_grandchild);
+}
+
+fn main() {
+  let port[int] p = port();
+
+  auto _child = spawn child(chan(p));
+  
+  let int x;
+  p |> x;
+
+  log x;
+
+  assert(x == 42);
+
+  join(_child);
+}