Imported Upstream version 4.0.3.13

Former-commit-id: 4f1f69b42e04def9a697c2550b23b9cae645ef29

mcs/class/System.ServiceModel/System.ServiceModel/SilverlightClientConfigLoader.cs

@@ -25,7 +25,8 @@
 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 //
-#if NET_2_1
+#if NET_2_1 || XAMMAC_4_5
+
 using System;
 using System.Collections.Generic;
 using System.ServiceModel.Channels;