Added newlines

csharp/src/Google.Protobuf.Test/Reflection/DescriptorsTest.cs

@@ -236,4 +236,4 @@ namespace Google.Protobuf.Reflection
             Assert.IsNull(messageDescriptor.GeneratedType);
         }
     }
-}
\ No newline at end of file
+}

csharp/src/Google.Protobuf/Reflection/MessageDescriptor.cs

@@ -286,4 +286,4 @@ namespace Google.Protobuf.Reflection
             }
         }
     }
-}
\ No newline at end of file
+}