Add a test case for #898. Closes #898.

Seems to have been fixed.

src/test/run-pass/issue-898.rs

@@ -0,0 +1,11 @@
+fn even(&&e: int) -> bool {
+    e % 2 == 0
+}
+
+fn log_if<T>(c: fn(T)->bool, e: T) {
+    if c(e) { log e; }
+}
+
+fn main() {
+    (bind log_if(even, _))(2);
+}