import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

testing/web-platform/tests/WebIDL/valid/idl/iterator.widl

@@ -0,0 +1,35 @@
+interface SessionManager {
+  Session getSessionForUser(DOMString username);
+  readonly attribute unsigned long sessionCount;
+
+  Session iterator;
+};
+
+interface Session {
+  readonly attribute DOMString username;
+  // ...
+};
+
+interface SessionManager2 {
+  Session2 getSessionForUser(DOMString username);
+  readonly attribute unsigned long sessionCount;
+
+  Session2 iterator = SessionIterator;
+};
+
+interface Session2 {
+  readonly attribute DOMString username;
+  // ...
+};
+
+interface SessionIterator {
+  readonly attribute unsigned long remainingSessions;
+};
+
+     interface NodeList {
+       Node iterator = NodeIterator;
+     };
+
+     interface NodeIterator {
+       Node iterator object;
+     };