Try to enable all webidls (#573)

* Try to enable all webidls

* Separate out unavailable webidl files by reason.

* Create record of fully tested WebIDL files

* Update notes to reflect new situation with web-idl

* Make a blank ident fail, disable the necessary widls.

It turns out that all the blank idents came from blank enum variants,
which is allowed in webidl apparently.

crates/web-sys/webidls/enabled/RTCSessionDescription.webidl

@@ -0,0 +1,31 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * The origin of this IDL file is
+ * http://dev.w3.org/2011/webrtc/editor/webrtc.html#idl-def-RTCSessionDescription
+ */
+
+enum RTCSdpType {
+  "offer",
+  "pranswer",
+  "answer",
+  "rollback"
+};
+
+dictionary RTCSessionDescriptionInit {
+  required RTCSdpType type;
+  DOMString sdp = "";
+};
+
+[Pref="media.peerconnection.enabled",
+ JSImplementation="@mozilla.org/dom/rtcsessiondescription;1",
+ Constructor(optional RTCSessionDescriptionInit descriptionInitDict)]
+interface RTCSessionDescription {
+  // These should be readonly, but writing causes deprecation warnings for a bit
+  attribute RTCSdpType type;
+  attribute DOMString sdp;
+
+  [Default] object toJSON();
+};