xfail-win32 linked-failure and send-iloop

Author: brson

src/test/run-pass/linked-failure.rs

@@ -1,4 +1,5 @@
 // -*- rust -*-
+// xfail-win32
 use std;
 import std::task;
 import std::comm::port;

src/test/run-pass/send-iloop.rs

@@ -1,3 +1,4 @@
+// xfail-win32
 use std;
 import std::task;
 import std::comm;