Add properties/methods to DataSource from ModelBuilder

lib/datasource.js

@@ -1657,3 +1657,17 @@ function defineReadonlyProp(obj, key, value) {
     });
 }
 
+
+// Carry over a few properties/methods from the ModelBuilder as some tests use them
+DataSource.Text = ModelBuilder.Text;
+DataSource.JSON = ModelBuilder.JSON;
+DataSource.Any = ModelBuilder.Any;
+
+/*!
+ * @deprecated Use ModelBuilder.registerType instead
+ * @param type
+ */
+DataSource.registerType = function(type) {
+  ModelBuilder.registerType(type);
+};
+