Fix a missing un-xfailed case

Issue #1230

Author: lht

src/test/run-pass/bind-native-fn.rs

@@ -1,13 +1,12 @@
 // From #1174:
-// xfail-test bots are crashing on this on x86_64
 
 use std;
 import str;
 import libc::*;
 
 #[nolink]
 native mod libc {
-    fn write(fd: c_int, buf: *u8, nbyte: size_t);
+    fn write(fd: core::libc::c_int, buf: *u8, nbyte: core::libc::size_t);
 }
 
 fn main() {