Adds the Module transformers

src/compiler/factory.ts

@@ -872,6 +872,13 @@ namespace ts {
         );
     }
 
+    export function createHasOwnProperty(target: LeftHandSideExpression, propertyName: Expression) {
+        return createCall(
+            createPropertyAccess(target, "hasOwnProperty"),
+            [propertyName]
+        );
+    }
+
     function createPropertyDescriptor({ get, set, value, enumerable, configurable, writable }: PropertyDescriptorOptions, preferNewLine?: boolean, location?: TextRange) {
         const properties: ObjectLiteralElement[] = [];
         addPropertyAssignment(properties, "get", get, preferNewLine);
@@ -922,13 +929,6 @@ namespace ts {
         );
     }
 
-    export function createHasOwnProperty(target: LeftHandSideExpression, propertyName: Expression) {
-        return createCall(
-            createPropertyAccess(target, "hasOwnProperty"),
-            [propertyName]
-        );
-    }
-
     function createObjectCreate(prototype: Expression) {
         return createCall(
             createPropertyAccess(createIdentifier("Object"), "create"),

src/compiler/transformers/module/es6.ts

@@ -7,10 +7,6 @@ namespace ts {
         return transformSourceFile;
 
         function transformSourceFile(node: SourceFile) {
-            return visitEachChild(node, visitor, context);
-        }
-
-        function visitor(node: Node): Node {
             return node;
         }
     }