reverting rmottola/Arctic-Fox changes in order to bisect memory leak and greasemonkey issue:

- Bug 1136925 part 1. Stop passing a parent to JS_CloneObject (02806f3cb)
- Bug 1136925 part 2. Stop passing a parent to Wrapper::New. (1d51cbd34)
- Bug 1136925 part 3. Stop passing parents to js::NewProxyObject. (dc13db8da)
- Bug 1136925 part 4. Stop passing parents to ProxyObject::New. (e2d30e340)
- Bug 1130679: IonMonkey: Make it possible to guard on type changes/bailouts (ecec18313)
- Bug 1136980 part 1. Get rid of JS_SetParent uses in DOM/XPConnect. (5cad9c256)
- Bug 1136980 part 2. Remove JS_SetParent, even though we have a CLOSED TREE (96cf58c85)
- Bug 1066229 - Part 5: Emitter support for basic ES6 ClassStatements. (e2a3cc979)
- Bug 1135423 - Use unboxed objects for object literals where possible, clean up object literal creation and property initialization code (1d9e381c2)
- Bug 1137523 part 2 - Unprefix a few js_* functions I forgot in part 1 (e6beaf0d8)
- Bug 1135816 - Handle unboxed object receivers when compiling getter/setter calls in baseline/Ion (82233087e)
- Bug 1138265 - TraceLogger: Throw error when trying to enable in AsmJS (64c799042)
- Bug 1113369, part 1 - Introduce JS::ObjectOpResult and use it in js::StandardDefineProperty. (15663c476)
- Bug 1113369, part 1½ - Avoid regressing error messages by adding obj to the ObjectOpResult methods that could throw a TypeError. (e063faf08)
- Bug 1113369, part 2 - js::SetArrayLength ObjectOpResult support. (cf8326017)
- Bug 1113369, part 3 - [[DefineOwnProperty]] ObjectOpResult support. (e16605a90)
- Bug 1113369, part 4 - [[Set]] ObjectOpResult support. (6f94604d4)
- Bug 1077002 - Give a better error message when showModalDialog is used (18d8ecc12)
- Bug 1135792. Stop assuming that every binding for a global with a non-worker descriptor is a binding for Window. (dd0260c12)
- Bug 1135810. Add more explicit checks for whether a descriptor wants Xrays or not instead of assuming that Xrays are desired if and only if descriptor.workers is false. (17ef71544)
- Bug 1050456 - Part 1: Prevent prerendered pages from showing the slow script dialog (173044922)
- Bug 1050456 - Part 2: Add a nsGlobalWindow::GetIsPrerendered helper (ac680a5f7)
hopefully we can re-apply them later.

js/ipc/JavaScriptShared.cpp

@@ -605,8 +605,7 @@ UnknownPropertyStub(JSContext* cx, HandleObject obj, HandleId id, MutableHandleV
 }
 
 bool
-UnknownStrictPropertyStub(JSContext *cx, HandleObject obj, HandleId id, MutableHandleValue vp,
-                          ObjectOpResult &result)
+UnknownStrictPropertyStub(JSContext* cx, HandleObject obj, HandleId id, bool strict, MutableHandleValue vp)
 {
     JS_ReportError(cx, "setter could not be wrapped via CPOWs");
     return false;