test/Misc/dev-fd-fs.c: Mark this as XFAIL:freebsd (since r169831).

I don't want to suppress this to be excluded with the feature "dev-fd-fs". This should work also on freebsd.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170411 91177308-0d34-0410-b5e6-96231b3b80d8

test/Misc/dev-fd-fs.c

@@ -1,6 +1,8 @@
 // Check that we can operate on files from /dev/fd.
 // REQUIRES: dev-fd-fs
 
+// It has not been working since r169831 on freebsd.
+// XFAIL: freebsd
 
 // Check reading from named pipes. We cat the input here instead of redirecting
 // it to ensure that /dev/fd/0 is a named pipe, not just a redirected file.