Add decorator for FreeBSD DynamicValueTestCase failure

Not yet root-caused, but I presume it is the same issue that affects
Linux.

llvm-svn: 205712
diff --git a/lldb/test/lang/cpp/dynamic-value/TestDynamicValue.py b/lldb/test/lang/cpp/dynamic-value/TestDynamicValue.py
index 84cf6a5..576d964 100644
--- a/lldb/test/lang/cpp/dynamic-value/TestDynamicValue.py
+++ b/lldb/test/lang/cpp/dynamic-value/TestDynamicValue.py
@@ -20,6 +20,7 @@
         self.buildDsym(dictionary=self.getBuildFlags())
         self.do_get_dynamic_vals()
 
+    @expectedFailureFreeBSD # FIXME: This needs to be root-caused.
     @expectedFailureLinux # FIXME: This needs to be root-caused.  It looks like the DWARF info is anticipating the derived class assignment.
     @python_api_test
     @dwarf_test