Ignore issue-14393 on Windows

Author: Jakub Wieczorek

src/test/run-pass/issue-14393.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// ignore-win32: FIXME #13793
+
 fn main() {
     match ("", 1u) {
         (_, 42u) => (),