Merge branch 'master' into certexception-work

187 files changed, 345 insertions, 3384 deletions

diff --git a/js/public/Class.h b/js/public/Class.h
index 3b5023875..f7533654b 100644
--- a/js/public/Class.h
+++ b/js/public/Class.h
@@ -425,12 +425,6 @@ typedef bool
 (* DeletePropertyOp)(JSContext* cx, JS::HandleObject obj, JS::HandleId id,
                      JS::ObjectOpResult& result);
 
-typedef bool
-(* WatchOp)(JSContext* cx, JS::HandleObject obj, JS::HandleId id, JS::HandleObject callable);
-
-typedef bool
-(* UnwatchOp)(JSContext* cx, JS::HandleObject obj, JS::HandleId id);
-
 class JS_FRIEND_API(ElementAdder)
 {
   public:
@@ -670,8 +664,6 @@ struct ObjectOps
     SetPropertyOp    setProperty;
     GetOwnPropertyOp getOwnPropertyDescriptor;
     DeletePropertyOp deleteProperty;
-    WatchOp          watch;
-    UnwatchOp        unwatch;
     GetElementsOp    getElements;
     JSNewEnumerateOp enumerate;
     JSFunToStringOp  funToString;
@@ -822,8 +814,8 @@ struct Class
      * Objects of this class aren't native objects. They don't have Shapes that
      * describe their properties and layout. Classes using this flag must
      * provide their own property behavior, either by being proxy classes (do
-     * this) or by overriding all the ObjectOps except getElements, watch and
-     * unwatch (don't do this).
+     * this) or by overriding all the ObjectOps except getElements
+     * (don't do this).
      */
     static const uint32_t NON_NATIVE = JSCLASS_INTERNAL_FLAG2;
 
@@ -900,8 +892,6 @@ struct Class
                                             const { return oOps ? oOps->getOwnPropertyDescriptor
                                                                                      : nullptr; }
     DeletePropertyOp getOpsDeleteProperty() const { return oOps ? oOps->deleteProperty : nullptr; }
-    WatchOp          getOpsWatch()          const { return oOps ? oOps->watch          : nullptr; }
-    UnwatchOp        getOpsUnwatch()        const { return oOps ? oOps->unwatch        : nullptr; }
     GetElementsOp    getOpsGetElements()    const { return oOps ? oOps->getElements    : nullptr; }
     JSNewEnumerateOp getOpsEnumerate()      const { return oOps ? oOps->enumerate      : nullptr; }
     JSFunToStringOp  getOpsFunToString()    const { return oOps ? oOps->funToString    : nullptr; }
diff --git a/js/public/Proxy.h b/js/public/Proxy.h
index 5acb91b26..f40772fb0 100644
--- a/js/public/Proxy.h
+++ b/js/public/Proxy.h
@@ -341,12 +341,6 @@ class JS_FRIEND_API(BaseProxyHandler)
     virtual bool isCallable(JSObject* obj) const;
     virtual bool isConstructor(JSObject* obj) const;
 
-    // These two hooks must be overridden, or not overridden, in tandem -- no
-    // overriding just one!
-    virtual bool watch(JSContext* cx, JS::HandleObject proxy, JS::HandleId id,
-                       JS::HandleObject callable) const;
-    virtual bool unwatch(JSContext* cx, JS::HandleObject proxy, JS::HandleId id) const;
-
     virtual bool getElements(JSContext* cx, HandleObject proxy, uint32_t begin, uint32_t end,
                              ElementAdder* adder) const;
 
diff --git a/js/src/Makefile.in b/js/src/Makefile.in
index 20678c68c..bc99e62b5 100644
--- a/js/src/Makefile.in
+++ b/js/src/Makefile.in
@@ -138,6 +138,17 @@ distclean::
 
 CFLAGS += $(MOZ_ZLIB_CFLAGS)
 
+ifeq ($(OS_ARCH),SunOS)
+ifeq ($(TARGET_CPU),sparc)
+
+ifdef GNU_CC
+CFLAGS   += -mcpu=v9
+CXXFLAGS += -mcpu=v9
+endif #GNU_CC
+
+endif
+endif
+
 $(LIBRARY_NAME).pc: js.pc
 	cp $^ $@
 
diff --git a/js/src/builtin/IntlTimeZoneData.h b/js/src/builtin/IntlTimeZoneData.h
index 8f963ffbc..1612f0f6b 100644
--- a/js/src/builtin/IntlTimeZoneData.h
+++ b/js/src/builtin/IntlTimeZoneData.h
@@ -1,5 +1,5 @@
 // Generated by make_intl_data.py. DO NOT EDIT.
-// tzdata version = 2019a
+// tzdata version = 2019c
 
 #ifndef builtin_IntlTimeZoneData_h
 #define builtin_IntlTimeZoneData_h
diff --git a/js/src/builtin/Object.cpp b/js/src/builtin/Object.cpp
index 56c77f304..bfcc8d20e 100644
--- a/js/src/builtin/Object.cpp
+++ b/js/src/builtin/Object.cpp
@@ -568,97 +568,6 @@ obj_setPrototypeOf(JSContext* cx, unsigned argc, Value* vp)
     return true;
 }
 
-#if JS_HAS_OBJ_WATCHPOINT
-
-bool
-js::WatchHandler(JSContext* cx, JSObject* obj_, jsid id_, const JS::Value& old,
-                 JS::Value* nvp, void* closure)
-{
-    RootedObject obj(cx, obj_);
-    RootedId id(cx, id_);
-
-    /* Avoid recursion on (obj, id) already being watched on cx. */
-    AutoResolving resolving(cx, obj, id, AutoResolving::WATCH);
-    if (resolving.alreadyStarted())
-        return true;
-
-    FixedInvokeArgs<3> args(cx);
-
-    args[0].set(IdToValue(id));
-    args[1].set(old);
-    args[2].set(*nvp);
-
-    RootedValue callable(cx, ObjectValue(*static_cast<JSObject*>(closure)));
-    RootedValue thisv(cx, ObjectValue(*obj));
-    RootedValue rv(cx);
-    if (!Call(cx, callable, thisv, args, &rv))
-        return false;
-
-    *nvp = rv;
-    return true;
-}
-
-static bool
-obj_watch(JSContext* cx, unsigned argc, Value* vp)
-{
-    CallArgs args = CallArgsFromVp(argc, vp);
-
-    RootedObject obj(cx, ToObject(cx, args.thisv()));
-    if (!obj)
-        return false;
-
-    if (!GlobalObject::warnOnceAboutWatch(cx, obj))
-        return false;
-
-    if (args.length() <= 1) {
-        ReportMissingArg(cx, args.calleev(), 1);
-        return false;
-    }
-
-    RootedObject callable(cx, ValueToCallable(cx, args[1], args.length() - 2));
-    if (!callable)
-        return false;
-
-    RootedId propid(cx);
-    if (!ValueToId<CanGC>(cx, args[0], &propid))
-        return false;
-
-    if (!WatchProperty(cx, obj, propid, callable))
-        return false;
-
-    args.rval().setUndefined();
-    return true;
-}
-
-static bool
-obj_unwatch(JSContext* cx, unsigned argc, Value* vp)
-{
-    CallArgs args = CallArgsFromVp(argc, vp);
-
-    RootedObject obj(cx, ToObject(cx, args.thisv()));
-    if (!obj)
-        return false;
-
-    if (!GlobalObject::warnOnceAboutWatch(cx, obj))
-        return false;
-
-    RootedId id(cx);
-    if (args.length() != 0) {
-        if (!ValueToId<CanGC>(cx, args[0], &id))
-            return false;
-    } else {
-        id = JSID_VOID;
-    }
-
-    if (!UnwatchProperty(cx, obj, id))
-        return false;
-
-    args.rval().setUndefined();
-    return true;
-}
-
-#endif /* JS_HAS_OBJ_WATCHPOINT */
-
 /* ECMA 15.2.4.5. */
 bool
 js::obj_hasOwnProperty(JSContext* cx, unsigned argc, Value* vp)
@@ -1290,10 +1199,6 @@ static const JSFunctionSpec object_methods[] = {
     JS_FN(js_toString_str,             obj_toString,                0,0),
     JS_SELF_HOSTED_FN(js_toLocaleString_str, "Object_toLocaleString", 0, 0),
     JS_SELF_HOSTED_FN(js_valueOf_str,  "Object_valueOf",            0,0),
-#if JS_HAS_OBJ_WATCHPOINT
-    JS_FN(js_watch_str,                obj_watch,                   2,0),
-    JS_FN(js_unwatch_str,              obj_unwatch,                 1,0),
-#endif
     JS_FN(js_hasOwnProperty_str,       obj_hasOwnProperty,          1,0),
     JS_FN(js_isPrototypeOf_str,        obj_isPrototypeOf,           1,0),
     JS_FN(js_propertyIsEnumerable_str, obj_propertyIsEnumerable,    1,0),
diff --git a/js/src/builtin/TestingFunctions.cpp b/js/src/builtin/TestingFunctions.cpp
index 992fe2c97..4363c7aed 100644
--- a/js/src/builtin/TestingFunctions.cpp
+++ b/js/src/builtin/TestingFunctions.cpp
@@ -239,8 +239,11 @@ GetBuildConfiguration(JSContext* cx, unsigned argc, Value* vp)
     value = BooleanValue(true);
     if (!JS_SetProperty(cx, info, "intl-api", value))
         return false;
-
+#ifdef XP_SOLARIS
+    value = BooleanValue(false);
+#else
     value = BooleanValue(true);
+#endif    
     if (!JS_SetProperty(cx, info, "mapped-array-buffer", value))
         return false;
 
diff --git a/js/src/builtin/TypedObject.cpp b/js/src/builtin/TypedObject.cpp
index ff3680774..50bf0b836 100644
--- a/js/src/builtin/TypedObject.cpp
+++ b/js/src/builtin/TypedObject.cpp
@@ -2215,7 +2215,6 @@ const ObjectOps TypedObject::objectOps_ = {
     TypedObject::obj_setProperty,
     TypedObject::obj_getOwnPropertyDescriptor,
     TypedObject::obj_deleteProperty,
-    nullptr, nullptr, /* watch/unwatch */
     nullptr,   /* getElements */
     TypedObject::obj_enumerate,
     nullptr, /* thisValue */
diff --git a/js/src/ctypes/CTypes.cpp b/js/src/ctypes/CTypes.cpp
index d6adfac2c..aed1114bd 100644
--- a/js/src/ctypes/CTypes.cpp
+++ b/js/src/ctypes/CTypes.cpp
@@ -20,6 +20,10 @@
 #include <float.h>
 #endif
 
+#if defined(XP_SOLARIS)
+#include <ieeefp.h>
+#endif
+
 #ifdef HAVE_SSIZE_T
 #include <sys/types.h>
 #endif
diff --git a/js/src/ctypes/libffi/src/x86/win32.S b/js/src/ctypes/libffi/src/x86/win32.S
index daf0e799c..4f702e8b1 100644
--- a/js/src/ctypes/libffi/src/x86/win32.S
+++ b/js/src/ctypes/libffi/src/x86/win32.S
@@ -1158,8 +1158,24 @@ L_ffi_closure_SYSV_inner$stub:
 	.byte	0x7c	/* .sleb128 -4; CIE Data Alignment Factor */
 	.byte	0x8	/* CIE RA Column */
 #ifdef __PIC__
-	.byte	0x1	/* .uleb128 0x1; Augmentation size */
-	.byte	0x1b	/* FDE Encoding (pcrel sdata4) */
+# if defined __sun__ && defined __svr4__
+/* 32-bit Solaris 2/x86 uses datarel encoding for PIC.  GNU ld before 2.22
+   doesn't correctly sort .eh_frame_hdr with mixed encodings, so match this.  */
+#  define FDE_ENCODING		0x30	/* datarel */
+#  define FDE_ENCODE(X)		X@GOTOFF
+# else
+#  define FDE_ENCODING		0x1b	/* pcrel sdata4 */
+#  if defined HAVE_AS_X86_PCREL
+#   define FDE_ENCODE(X)	X-.
+#  else
+#   define FDE_ENCODE(X)	X@rel
+#  endif
+# endif
+#else
+# define FDE_ENCODING		0	/* absolute */
+# define FDE_ENCODE(X)		X
+.byte	0x1	/* .uleb128 0x1; Augmentation size */
+.byte   FDE_ENCODING
 #endif
 	.byte	0xc	/* DW_CFA_def_cfa CFA = r4 + 4 = 4(%esp) */
 	.byte	0x4	/* .uleb128 0x4 */
@@ -1176,7 +1192,7 @@ L_ffi_closure_SYSV_inner$stub:
 #if defined __PIC__ && defined HAVE_AS_X86_PCREL
 	.long	.LFB1-.	/* FDE initial location */
 #else
-	.long	.LFB1
+	.long	FDE_ENCODE(.LFB1)
 #endif
 	.long	.LFE1-.LFB1	/* FDE address range */
 #ifdef __PIC__
@@ -1207,7 +1223,7 @@ L_ffi_closure_SYSV_inner$stub:
 #if defined __PIC__ && defined HAVE_AS_X86_PCREL
 	.long	.LFB3-.	/* FDE initial location */
 #else
-	.long	.LFB3
+	.long	FDE_ENCODE(.LFB3)
 #endif
 	.long	.LFE3-.LFB3	/* FDE address range */
 #ifdef __PIC__
@@ -1240,7 +1256,7 @@ L_ffi_closure_SYSV_inner$stub:
 #if defined __PIC__ && defined HAVE_AS_X86_PCREL
 	.long	.LFB4-.	/* FDE initial location */
 #else
-	.long	.LFB4
+	.long	FDE_ENCODE(.LFB4)
 #endif
 	.long	.LFE4-.LFB4	/* FDE address range */
 #ifdef __PIC__
@@ -1278,7 +1294,7 @@ L_ffi_closure_SYSV_inner$stub:
 #if defined __PIC__ && defined HAVE_AS_X86_PCREL
 	.long	.LFB5-.	/* FDE initial location */
 #else
-	.long	.LFB5
+	.long	FDE_ENCODE(.LFB5)
 #endif
 	.long	.LFE5-.LFB5	/* FDE address range */
 #ifdef __PIC__
diff --git a/js/src/gc/Marking.cpp b/js/src/gc/Marking.cpp
index da3ef7d0d..262fc8cbc 100644
--- a/js/src/gc/Marking.cpp
+++ b/js/src/gc/Marking.cpp
@@ -2846,10 +2846,9 @@ struct UnmarkGrayTracer : public JS::CallbackTracer
  *
  * There is an additional complication for certain kinds of edges that are not
  * contained explicitly in the source object itself, such as from a weakmap key
- * to its value, and from an object being watched by a watchpoint to the
- * watchpoint's closure. These "implicit edges" are represented in some other
- * container object, such as the weakmap or the watchpoint itself. In these
- * cases, calling unmark gray on an object won't find all of its children.
+ * to its value. These "implicit edges" are represented in some other
+ * container object, such as the weakmap itself. In these cases, calling unmark
+ * gray on an object won't find all of its children.
  *
  * Handling these implicit edges has two parts:
  * - A special pass enumerating all of the containers that know about the
diff --git a/js/src/gc/Memory.cpp b/js/src/gc/Memory.cpp
index 268e1e489..418984057 100644
--- a/js/src/gc/Memory.cpp
+++ b/js/src/gc/Memory.cpp
@@ -415,8 +415,15 @@ InitMemorySubsystem()
 static inline void*
 MapMemoryAt(void* desired, size_t length, int prot = PROT_READ | PROT_WRITE,
             int flags = MAP_PRIVATE | MAP_ANON, int fd = -1, off_t offset = 0)
+
+// Solaris manages 64-bit address space in a different manner from every other
+// AMD64 operating system, but fortunately the fix is the same one 
+// required for every operating system on 64-bit SPARC, Itanium, and ARM. 
+// Most people's intuition failed them here and they thought this couldn't
+// possibly be correct on AMD64, but for Solaris/illumos it is.	
+	
 {
-#if defined(__ia64__) || (defined(__sparc64__) && defined(__NetBSD__)) || defined(__aarch64__)
+#if defined(__ia64__) || (defined(__sparc64__) && defined(__NetBSD__)) || defined(__aarch64__) || (defined(__sun) && defined(__x86_64__))
     MOZ_ASSERT((0xffff800000000000ULL & (uintptr_t(desired) + length - 1)) == 0);
 #endif
     void* region = mmap(desired, length, prot, flags, fd, offset);
@@ -466,7 +473,7 @@ MapMemory(size_t length, int prot = PROT_READ | PROT_WRITE,
         return nullptr;
     }
     return region;
-#elif defined(__aarch64__)
+#elif defined(__aarch64__) || (defined(__sun) && defined(__x86_64__))
    /*
     * There might be similar virtual address issue on arm64 which depends on
     * hardware and kernel configurations. But the work around is slightly
@@ -678,7 +685,11 @@ MarkPagesUnused(void* p, size_t size)
         return false;
 
     MOZ_ASSERT(OffsetFromAligned(p, pageSize) == 0);
-    int result = madvise(p, size, MADV_DONTNEED);
+#ifdef XP_SOLARIS
+     int result = posix_madvise(p, size, POSIX_MADV_DONTNEED);
+#else
+     int result = madvise(p, size, MADV_DONTNEED);
+#endif
     return result != -1;
 }
 
diff --git a/js/src/gc/RootMarking.cpp b/js/src/gc/RootMarking.cpp
index f5969bc1f..7d665e8eb 100644
--- a/js/src/gc/RootMarking.cpp
+++ b/js/src/gc/RootMarking.cpp
@@ -14,7 +14,6 @@
 #include "jsgc.h"
 #include "jsprf.h"
 #include "jstypes.h"
-#include "jswatchpoint.h"
 
 #include "builtin/MapObject.h"
 #include "frontend/BytecodeCompiler.h"
diff --git a/js/src/jit-test/tests/auto-regress/bug466654.js b/js/src/jit-test/tests/auto-regress/bug466654.js
deleted file mode 100644
index 6c82c425b..000000000
--- a/js/src/jit-test/tests/auto-regress/bug466654.js
+++ /dev/null
@@ -1,8 +0,0 @@
-// |jit-test| error:TypeError
-
-// Binary: cache/js-dbg-32-29add08d84ae-linux
-// Flags: -j
-//
-this.watch('y',  /x/g );
-for each (y in ['q', 'q', 'q']) continue;
-gc();
diff --git a/js/src/jit-test/tests/auto-regress/bug516897.js b/js/src/jit-test/tests/auto-regress/bug516897.js
deleted file mode 100644
index e3caf4e6e..000000000
--- a/js/src/jit-test/tests/auto-regress/bug516897.js
+++ /dev/null
@@ -1,6 +0,0 @@
-// Binary: cache/js-dbg-64-38754465ffde-linux
-// Flags:
-//
-this.__defineSetter__("x", gc);
-this.watch("x",function(){return});
-x = 3;
diff --git a/js/src/jit-test/tests/auto-regress/bug537854.js b/js/src/jit-test/tests/auto-regress/bug537854.js
deleted file mode 100644
index 80fb3c14a..000000000
--- a/js/src/jit-test/tests/auto-regress/bug537854.js
+++ /dev/null
@@ -1,4 +0,0 @@
-// Binary: cache/js-dbg-64-9d51f2a931f7-linux
-// Flags:
-//
-({x:function(){}}).watch('x',function(){});
diff --git a/js/src/jit-test/tests/auto-regress/bug560796.js b/js/src/jit-test/tests/auto-regress/bug560796.js
deleted file mode 100644
index 4ab93567e..000000000
--- a/js/src/jit-test/tests/auto-regress/bug560796.js
+++ /dev/null
@@ -1,9 +0,0 @@
-// Binary: cache/js-dbg-64-a6d7a5677b4c-linux
-// Flags:
-//
-this.__defineSetter__("x", function(){})
-this.watch("x", "".localeCompare)
-window = x
-Object.defineProperty(this, "x", ({
-    set: window
-}))
diff --git a/js/src/jit-test/tests/auto-regress/bug638735.js b/js/src/jit-test/tests/auto-regress/bug638735.js
index 63071aa7c..c941f5369 100644
--- a/js/src/jit-test/tests/auto-regress/bug638735.js
+++ b/js/src/jit-test/tests/auto-regress/bug638735.js
@@ -4,7 +4,6 @@
 var o9 = Function.prototype;
 var o13 = Array;
 function f5(o) {
-o.watch('p3', function() {});
 ox1 = new Proxy(o, {});
 }
 f5(o9);
diff --git a/js/src/jit-test/tests/auto-regress/bug639413.js b/js/src/jit-test/tests/auto-regress/bug639413.js
deleted file mode 100644
index d8dd58eaf..000000000
--- a/js/src/jit-test/tests/auto-regress/bug639413.js
+++ /dev/null
@@ -1,9 +0,0 @@
-// |jit-test| error:TypeError
-
-// Binary: cache/js-dbg-32-1c8e91b2e3a4-linux
-// Flags:
-//
-a = evalcx("lazy");
-a.watch("x", function() {});
-({}).watch("x", function() {});
-a.__defineGetter__("y", {});
diff --git a/js/src/jit-test/tests/auto-regress/bug698899.js b/js/src/jit-test/tests/auto-regress/bug698899.js
deleted file mode 100644
index 644f45ec2..000000000
--- a/js/src/jit-test/tests/auto-regress/bug698899.js
+++ /dev/null
@@ -1,9 +0,0 @@
-// Binary: cache/js-dbg-32-f951e9151626-linux
-// Flags: -m -n
-//
-o = evalcx("lazy").__proto__
-gc()
-try {
-    o.watch()
-} catch (e) {}
-o.constructor()
diff --git a/js/src/jit-test/tests/auto-regress/bug746397.js b/js/src/jit-test/tests/auto-regress/bug746397.js
deleted file mode 100644
index d915ca7bb..000000000
--- a/js/src/jit-test/tests/auto-regress/bug746397.js
+++ /dev/null
@@ -1,10 +0,0 @@
-// |jit-test| error:ReferenceError
-
-// Binary: cache/js-dbg-64-67bf9a4a1f77-linux
-// Flags: --ion-eager
-//
-
-(function () {
-  var a = ['x', 'y'];
-  obj.watch(a[+("0")], counter);
-})();
diff --git a/js/src/jit-test/tests/auto-regress/bug769192.js b/js/src/jit-test/tests/auto-regress/bug769192.js
deleted file mode 100644
index 531e37912..000000000
--- a/js/src/jit-test/tests/auto-regress/bug769192.js
+++ /dev/null
@@ -1,6 +0,0 @@
-// |jit-test| error:TypeError
-
-// Binary: cache/js-dbg-64-bf8f2961d0cc-linux
-// Flags:
-//
-Object.watch.call(new Uint8ClampedArray, "length", function() {});
diff --git a/js/src/jit-test/tests/baseline/bug843444.js b/js/src/jit-test/tests/baseline/bug843444.js
deleted file mode 100644
index 3a77402ac..000000000
--- a/js/src/jit-test/tests/baseline/bug843444.js
+++ /dev/null
@@ -1,8 +0,0 @@
-gczeal(8, 1)
-function recurse(x) {
-    recurse;
-    if (x < 20)
-	recurse(x + 1);
-};
-this.watch(5, (function () {}))
-recurse(0)
diff --git a/js/src/jit-test/tests/basic/bug510437.js b/js/src/jit-test/tests/basic/bug510437.js
deleted file mode 100644
index 2418b9b11..000000000
--- a/js/src/jit-test/tests/basic/bug510437.js
+++ /dev/null
@@ -1,13 +0,0 @@
-// Don't crash or assert.
-
-var d;
-this.watch("d", eval);
-(function () {
-    (eval("\
-    (function () {\
-        for (let x = 0; x < 2; ++x) {\
-            d = x\
-        }\
-    })\
-"))()
-})()
diff --git a/js/src/jit-test/tests/basic/bug605015.js b/js/src/jit-test/tests/basic/bug605015.js
deleted file mode 100644
index a35f7b6c7..000000000
--- a/js/src/jit-test/tests/basic/bug605015.js
+++ /dev/null
@@ -1,9 +0,0 @@
-// |jit-test| error: TypeError 

-// don't assert

-

-print(this.watch("x",

-function() {

-  Object.defineProperty(this, "x", ({

-    get: (Int8Array)

-  }))

-}))(x = /x/)

diff --git a/js/src/jit-test/tests/basic/bug631305.js b/js/src/jit-test/tests/basic/bug631305.js
deleted file mode 100644
index b0cbbbb24..000000000
--- a/js/src/jit-test/tests/basic/bug631305.js
+++ /dev/null
@@ -1,9 +0,0 @@
-var n = 0;
-var a = [];
-for (var i = 0; i < 20; i++)
-    a[i] = {};
-a[18].watch("p", function () { n++; });
-delete a[18].p;
-for (var i = 0; i < 20; i++)
-    a[i].p = 0;
-assertEq(n, 1);
diff --git a/js/src/jit-test/tests/basic/bug662562.js b/js/src/jit-test/tests/basic/bug662562.js
deleted file mode 100644
index 45b48589a..000000000
--- a/js/src/jit-test/tests/basic/bug662562.js
+++ /dev/null
@@ -1,6 +0,0 @@
-// |jit-test| error: TypeError
-function f(o) {
-    o.watch("x", this);
-}
-var c = evalcx("");
-f(c);
diff --git a/js/src/jit-test/tests/basic/bug690292.js b/js/src/jit-test/tests/basic/bug690292.js
deleted file mode 100644
index 43ab56dd7..000000000
--- a/js/src/jit-test/tests/basic/bug690292.js
+++ /dev/null
@@ -1,12 +0,0 @@
-
-done = false;
-try {
-    function x() {}
-    print(this.watch("d", Object.create))
-    var d = {}
-} catch (e) {}
-try {
-  eval("d = ''")
-  done = true;
-} catch (e) {}
-assertEq(done, false);
diff --git a/js/src/jit-test/tests/basic/bug696748.js b/js/src/jit-test/tests/basic/bug696748.js
index fe171f976..33fb4d52f 100644
--- a/js/src/jit-test/tests/basic/bug696748.js
+++ b/js/src/jit-test/tests/basic/bug696748.js
@@ -1,6 +1,3 @@
-try {
-this.watch("b", "".substring);
-} catch(exc1) {}
 eval("\
 var URI = '';\
 test();\
diff --git a/js/src/jit-test/tests/basic/bug831846.js b/js/src/jit-test/tests/basic/bug831846.js
deleted file mode 100644
index 30bb3aa86..000000000
--- a/js/src/jit-test/tests/basic/bug831846.js
+++ /dev/null
@@ -1,3 +0,0 @@
-// |jit-test| error:TypeError
-
-evalcx('').watch("", /()/);
diff --git a/js/src/jit-test/tests/basic/testAssigningWatchedDeletedProperty.js b/js/src/jit-test/tests/basic/testAssigningWatchedDeletedProperty.js
deleted file mode 100644
index c22eabed0..000000000
--- a/js/src/jit-test/tests/basic/testAssigningWatchedDeletedProperty.js
+++ /dev/null
@@ -1,7 +0,0 @@
-var o = {};
-o.watch("p", function() { });
-
-for (var i = 0; i < 10; i++) {
-    o.p = 123;
-    delete o.p;
-}
diff --git a/js/src/jit-test/tests/basic/testBug566556.js b/js/src/jit-test/tests/basic/testBug566556.js
deleted file mode 100644
index 244be57d2..000000000
--- a/js/src/jit-test/tests/basic/testBug566556.js
+++ /dev/null
@@ -1,9 +0,0 @@
-var msg = "";
-try {
-    this.__defineSetter__('x', Object.create);
-    this.watch('x', function() {});
-    x = 3;
-} catch (e) {
-    msg = e.toString();
-}
-assertEq(msg, "TypeError: undefined is not an object or null");
diff --git a/js/src/jit-test/tests/basic/testBug578044.js b/js/src/jit-test/tests/basic/testBug578044.js
deleted file mode 100644
index c5b811dc9..000000000
--- a/js/src/jit-test/tests/basic/testBug578044.js
+++ /dev/null
@@ -1,13 +0,0 @@
-this.watch("x", Object.create)
-try {
-  (function() {
-    this.__defineGetter__("x",
-    function() {
-      return this
-    })
-  })()
-} catch(e) {}
-Object.defineProperty(x, "x", ({
-  set: Uint16Array
-}))
-
diff --git a/js/src/jit-test/tests/basic/testBug584650.js b/js/src/jit-test/tests/basic/testBug584650.js
deleted file mode 100644
index b6c9d8ab7..000000000
--- a/js/src/jit-test/tests/basic/testBug584650.js
+++ /dev/null
@@ -1,9 +0,0 @@
-if (typeof gczeal != "function")
-    gczeal = function() {}
-
-// don't crash
-x = (evalcx('lazy'))
-x.watch("", function () {})
-gczeal(1)
-for (w in x) {}
-
diff --git a/js/src/jit-test/tests/basic/testBug780288-1.js b/js/src/jit-test/tests/basic/testBug780288-1.js
deleted file mode 100644
index 90746a04a..000000000
--- a/js/src/jit-test/tests/basic/testBug780288-1.js
+++ /dev/null
@@ -1,20 +0,0 @@
-s = newGlobal()
-try {
-  evalcx("\
-	Object.defineProperty(this,\"i\",{enumerable:true,get:function(){t}});\
-	for each(y in this)true\
-  ", s)
-} catch (e) {}
-try {
-  evalcx("\
-	for(z=0,(7).watch(\"\",eval);;g){\
-	  if(z=1){({t:function(){}})\
-	}\
-	", s)
-} catch (e) {}
-try {
-  evalcx("\
-	Object.defineProperty(this,\"g2\",{get:function(){return this}});\
-	g2.y()\
-  ", s)
-} catch (e) {}
diff --git a/js/src/jit-test/tests/basic/testBug780288-2.js b/js/src/jit-test/tests/basic/testBug780288-2.js
deleted file mode 100644
index 8c4c1737c..000000000
--- a/js/src/jit-test/tests/basic/testBug780288-2.js
+++ /dev/null
@@ -1,20 +0,0 @@
-s = newGlobal()
-try {
-  evalcx("\
-	Object.defineProperty(this,\"i\",{enumerable:true,get:function(){t}});\
-	for each(y in this)true\
-  ", s)
-} catch (e) {}
-try {
-  evalcx("\
-	for(z=0,(7).watch(\"\",eval);;g){\
-	  if(z=1){({t:function(){}})\
-	}\
-	", s)
-} catch (e) {}
-try {
-  evalcx("\
-	Object.defineProperty(this,\"g2\",{get:function(){return this}});\
-	g2.y(\"\")\
-  ", s)
-} catch (e) {}
diff --git a/js/src/jit-test/tests/basic/testEvalCalledFromWatchOverSetter.js b/js/src/jit-test/tests/basic/testEvalCalledFromWatchOverSetter.js
deleted file mode 100644
index bcd60fd80..000000000
--- a/js/src/jit-test/tests/basic/testEvalCalledFromWatchOverSetter.js
+++ /dev/null
@@ -1,3 +0,0 @@
-this.__defineSetter__("x", function(){});
-this.watch("x", eval);
-x = 0;
diff --git a/js/src/jit-test/tests/basic/testNonStubGetter.js b/js/src/jit-test/tests/basic/testNonStubGetter.js
deleted file mode 100644
index 58a698eb4..000000000
--- a/js/src/jit-test/tests/basic/testNonStubGetter.js
+++ /dev/null
@@ -1,7 +0,0 @@
-function testNonStubGetter() {
-    { let [] = []; (this.watch("x", function(p, o, n) { return /a/g.exec(p, o, n); })); };
-    (function () { (eval("(function(){for each (x in [1, 2, 2]);});"))(); })();
-    this.unwatch("x");
-    return "ok";
-}
-assertEq(testNonStubGetter(), "ok");
diff --git a/js/src/jit-test/tests/basic/testSettingWatchPointOnReadOnlyProp.js b/js/src/jit-test/tests/basic/testSettingWatchPointOnReadOnlyProp.js
deleted file mode 100644
index 78c281f05..000000000
--- a/js/src/jit-test/tests/basic/testSettingWatchPointOnReadOnlyProp.js
+++ /dev/null
@@ -1,7 +0,0 @@
-for (var i = 0; i < 5; ++i) {
-    var o = {}
-    Object.defineProperty(o, 'x', { value:"cow", writable:false });
-    var r = o.watch('x', function() {});
-    assertEq(r, undefined);
-    o.x = 4;
-}
diff --git a/js/src/jit-test/tests/basic/testTrueShiftTrue.js b/js/src/jit-test/tests/basic/testTrueShiftTrue.js
deleted file mode 100644
index 44c1290d8..000000000
--- a/js/src/jit-test/tests/basic/testTrueShiftTrue.js
+++ /dev/null
@@ -1,16 +0,0 @@
-// Test no assert or crash from outer recorders (bug 465145)
-function testBug465145() {
-    this.__defineSetter__("x", function(){});
-    this.watch("x", function(){});
-    y = this;
-    for (var z = 0; z < 2; ++z) { x = y };
-    this.__defineSetter__("x", function(){});
-    for (var z = 0; z < 2; ++z) { x = y };
-}
-
-function testTrueShiftTrue() {
-    var a = new Array(5);
-    for (var i=0;i<5;++i) a[i] = "" + (true << true);
-    return a.join(",");
-}
-assertEq(testTrueShiftTrue(), "2,2,2,2,2");
diff --git a/js/src/jit-test/tests/basic/testWatchRecursion.js b/js/src/jit-test/tests/basic/testWatchRecursion.js
deleted file mode 100644
index e5d5877df..000000000
--- a/js/src/jit-test/tests/basic/testWatchRecursion.js
+++ /dev/null
@@ -1,63 +0,0 @@
-// Test that the watch handler is not called recursively for the same object
-// and property.
-(function() {
-    var obj1 = {}, obj2 = {};
-    var handler_entry_count = 0;
-    var handler_exit_count = 0;
-
-    obj1.watch('x', handler);
-    obj1.watch('y', handler);
-    obj2.watch('x', handler);
-    obj1.x = 1;
-    assertEq(handler_entry_count, 3);
-    assertEq(handler_exit_count, 3);
-
-    function handler(id) {
-        handler_entry_count++;
-        assertEq(handler_exit_count, 0);
-        switch (true) {
-          case this === obj1 && id === "x":
-            assertEq(handler_entry_count, 1);
-            obj2.x = 3;
-            assertEq(handler_exit_count, 2);
-            break;
-          case this === obj2 && id === "x":
-            assertEq(handler_entry_count, 2);
-            obj1.y = 4;
-            assertEq(handler_exit_count, 1);
-            break;
-          default:
-            assertEq(this, obj1);
-            assertEq(id, "y");
-            assertEq(handler_entry_count, 3);
-
-            // We expect no more watch handler invocations
-            obj1.x = 5;
-            obj1.y = 6;
-            obj2.x = 7;
-            assertEq(handler_exit_count, 0);
-            break;
-        }
-        ++handler_exit_count;
-        assertEq(handler_entry_count, 3);
-    }
-})();
-
-
-// Test that run-away recursion in watch handlers is properly handled.  
-(function() {
-    var obj = {};
-    var i = 0;
-    try {
-        handler();
-        throw new Error("Unreachable");
-    } catch(e) {
-        assertEq(e instanceof InternalError, true);
-    }
-    
-    function handler() {
-        var prop = "a" + ++i;
-        obj.watch(prop, handler);
-        obj[prop] = 2;
-    }
-})();
diff --git a/js/src/jit-test/tests/ctypes/function-definition.js b/js/src/jit-test/tests/ctypes/function-definition.js
index 4df317a09..5882ba889 100644
--- a/js/src/jit-test/tests/ctypes/function-definition.js
+++ b/js/src/jit-test/tests/ctypes/function-definition.js
@@ -27,7 +27,7 @@ function test() {
 
   let lib;
   try {
-    lib = ctypes.open(ctypes.libraryName("c"));
+    lib = ctypes.open(ctypes.libraryName("m"));
   } catch (e) {
   }
   if (!lib)
diff --git a/js/src/jit-test/tests/gc/bug-900405.js b/js/src/jit-test/tests/gc/bug-900405.js
deleted file mode 100644
index eeec6f25f..000000000
--- a/js/src/jit-test/tests/gc/bug-900405.js
+++ /dev/null
@@ -1,3 +0,0 @@
-(function() {
-    [{ "9": [] }.watch([], function(){})]
-})()
diff --git a/js/src/jit-test/tests/gc/bug-913261.js b/js/src/jit-test/tests/gc/bug-913261.js
deleted file mode 100644
index 43066053f..000000000
--- a/js/src/jit-test/tests/gc/bug-913261.js
+++ /dev/null
@@ -1,5 +0,0 @@
-// |jit-test| error: InternalError: too much recursion
-(function f() {
-    "".watch(2, function() {});
-    f();
-})()
diff --git a/js/src/jit-test/tests/gc/bug-986864.js b/js/src/jit-test/tests/gc/bug-986864.js
deleted file mode 100644
index abb8de6b2..000000000
--- a/js/src/jit-test/tests/gc/bug-986864.js
+++ /dev/null
@@ -1,8 +0,0 @@
-// |jit-test| slow
-function x() {}
-for (var j = 0; j < 9999; ++j) {
-    (function() {
-        x += x.watch("endsWith", ArrayBuffer);
-        return 0 >> Function(x)
-    })()
-}
diff --git a/js/src/jit-test/tests/ion/bug1063182.js b/js/src/jit-test/tests/ion/bug1063182.js
deleted file mode 100644
index 9cda48099..000000000
--- a/js/src/jit-test/tests/ion/bug1063182.js
+++ /dev/null
@@ -1,8 +0,0 @@
-// |jit-test| error: ReferenceError
-
-eval("(function() { " + "\
-var o = {};\
-o.watch('p', function() { });\
-for (var i = 0; i < 10; \u5ede ++)\
-    o.p = 123;\
-" + " })();");
diff --git a/js/src/jit-test/tests/ion/bug772901.js b/js/src/jit-test/tests/ion/bug772901.js
index eb71f6afb..164afd151 100644
--- a/js/src/jit-test/tests/ion/bug772901.js
+++ b/js/src/jit-test/tests/ion/bug772901.js
@@ -4,4 +4,4 @@ function f(x) {
     delete ((x)++);
     arguments[0] !== undefined;
 }
-f(1, x = [f.ArrayBuffer,unwatch.Int32Array], this, this, this) ;
+f(1, x = [f.ArrayBuffer, undefined], this, this, this) ;
diff --git a/js/src/jit-test/tests/ion/bug774257-1.js b/js/src/jit-test/tests/ion/bug774257-1.js
deleted file mode 100644
index 9c998a028..000000000
--- a/js/src/jit-test/tests/ion/bug774257-1.js
+++ /dev/null
@@ -1,8 +0,0 @@
-Object.defineProperty(Object.prototype, 'x', { 
-    set: function() { evalcx('lazy'); } 
-});
-var obj = {};
-obj.watch("x", function (id, oldval, newval) {});
-for (var str in 'A') {
-    obj.x = 1;
-}
diff --git a/js/src/jit-test/tests/ion/bug774257-2.js b/js/src/jit-test/tests/ion/bug774257-2.js
deleted file mode 100644
index b31043b08..000000000
--- a/js/src/jit-test/tests/ion/bug774257-2.js
+++ /dev/null
@@ -1,10 +0,0 @@
-Object.defineProperty(Object.prototype, 'x', { 
-    set: function() { evalcx('lazy'); } 
-});
-var obj = {};
-var prot = {};
-obj.__proto__ = prot;
-obj.watch("x", function (id, oldval, newval) {});
-for (var str in 'A') {
-    obj.x = 1;
-}
diff --git a/js/src/jit-test/tests/ion/bug779631.js b/js/src/jit-test/tests/ion/bug779631.js
deleted file mode 100644
index 087aa01ac..000000000
--- a/js/src/jit-test/tests/ion/bug779631.js
+++ /dev/null
@@ -1,9 +0,0 @@
-var flag = 0;
-var a = {};
-Object.defineProperty(a, "value", {set: function(x) {}});
-a.watch("value", function(){flag++;});
-
-for(var i = 0; i < 100; i++) {
-    a.value = i;
-    assertEq(flag, i+1);
-}
diff --git a/js/src/jit-test/tests/ion/bug783590.js b/js/src/jit-test/tests/ion/bug783590.js
index d48cb609e..9d277e02c 100644
--- a/js/src/jit-test/tests/ion/bug783590.js
+++ b/js/src/jit-test/tests/ion/bug783590.js
@@ -7,7 +7,6 @@ Object.defineProperty(arr, 0, {
     glob.__proto__;
   })
 });
-this.watch("s", function() {});
 try {
   arr.pop();
 } catch (e) {}
diff --git a/js/src/jit-test/tests/jaeger/bug550665.js b/js/src/jit-test/tests/jaeger/bug550665.js
deleted file mode 100644
index 816888b5e..000000000
--- a/js/src/jit-test/tests/jaeger/bug550665.js
+++ /dev/null
@@ -1,8 +0,0 @@
-(function () {
-  var a;
-  eval("for(w in ((function(x,y){b:0})())) ;");
-})();
-
-this.__defineSetter__("l", function() { gc() });
-this.watch("l", function(x) { yield {} });
-l = true;
diff --git a/js/src/jit-test/tests/jaeger/bug557063.js b/js/src/jit-test/tests/jaeger/bug557063.js
deleted file mode 100644
index ea77fd2c8..000000000
--- a/js/src/jit-test/tests/jaeger/bug557063.js
+++ /dev/null
@@ -1,7 +0,0 @@
-(function() {
-  for (a = 0; a < 2; a++)
-    ''.watch("", function() {})
-})()
-
-/* Don't crash or assert. */
-
diff --git a/js/src/jit-test/tests/jaeger/bug588338.js b/js/src/jit-test/tests/jaeger/bug588338.js
index 457be238a..c400d7687 100644
--- a/js/src/jit-test/tests/jaeger/bug588338.js
+++ b/js/src/jit-test/tests/jaeger/bug588338.js
@@ -9,7 +9,6 @@ function f() {
     }
   }
 })(/x/)))
-for (z = 0; z < 100; x.unwatch(), z++)
 for (e in [0]) {
   gczeal(2)
 } ( [1,2,3])("")
diff --git a/js/src/jit-test/tests/jaeger/bug625438.js b/js/src/jit-test/tests/jaeger/bug625438.js
deleted file mode 100644
index 32586d8ab..000000000
--- a/js/src/jit-test/tests/jaeger/bug625438.js
+++ /dev/null
@@ -1,10 +0,0 @@
-// vim: set ts=8 sts=4 et sw=4 tw=99:
-
-var count = 0;
-this.watch("x", function() {
-    count++;
-});
-for(var i=0; i<10; i++) {
-    x = 2;
-}
-assertEq(count, 10);
diff --git a/js/src/jit-test/tests/jaeger/bug630366.js b/js/src/jit-test/tests/jaeger/bug630366.js
deleted file mode 100644
index acac8d3ef..000000000
--- a/js/src/jit-test/tests/jaeger/bug630366.js
+++ /dev/null
@@ -1,7 +0,0 @@
-var o = {};
-for(var i=0; i<5; i++) {
-    o.p = 2;
-    o.watch("p", function() { });
-    o.p = 2;
-    delete o.p;
-}
diff --git a/js/src/jit-test/tests/jaeger/recompile/bug641225.js b/js/src/jit-test/tests/jaeger/recompile/bug641225.js
index a6e3a86c7..7b7978197 100644
--- a/js/src/jit-test/tests/jaeger/recompile/bug641225.js
+++ b/js/src/jit-test/tests/jaeger/recompile/bug641225.js
@@ -118,7 +118,6 @@ for(var o2 in f5) {
     f2(o5);
     f2(o5);
     f0(o3);
-    o9.watch('p3', function() {});
     o8[o8] = o8;
     f0(o5);
     f1(o6);
diff --git a/js/src/jit-test/tests/pic/fuzz1.js b/js/src/jit-test/tests/pic/fuzz1.js
deleted file mode 100644
index 2481a1314..000000000
--- a/js/src/jit-test/tests/pic/fuzz1.js
+++ /dev/null
@@ -1,4 +0,0 @@
-(function() {

-  for (a = 0; a < 2; a++)

-    ''.watch("", function() {})

-})()

diff --git a/js/src/jit-test/tests/pic/fuzz3.js b/js/src/jit-test/tests/pic/fuzz3.js
deleted file mode 100644
index 17613b6f5..000000000
--- a/js/src/jit-test/tests/pic/fuzz3.js
+++ /dev/null
@@ -1,3 +0,0 @@
-for each(let w in [[], 0, [], 0]) {

-  w.unwatch()

-}

diff --git a/js/src/jit-test/tests/pic/watch1.js b/js/src/jit-test/tests/pic/watch1.js
deleted file mode 100644
index 09d6347bf..000000000
--- a/js/src/jit-test/tests/pic/watch1.js
+++ /dev/null
@@ -1,7 +0,0 @@
-// assignments to watched objects must not be cached
-var obj = {x: 0};
-var hits = 0;
-obj.watch("x", function (id, oldval, newval) { hits++; return newval; });
-for (var i = 0; i < 10; i++)
-    obj.x = i;
-assertEq(hits, 10);
diff --git a/js/src/jit-test/tests/pic/watch1a.js b/js/src/jit-test/tests/pic/watch1a.js
deleted file mode 100644
index 4b404f507..000000000
--- a/js/src/jit-test/tests/pic/watch1a.js
+++ /dev/null
@@ -1,17 +0,0 @@
-// assignments to watched objects must not be traced
-var hits = 0;
-function counter(id, oldval, newval) {
-    hits++;
-    return newval;
-}
-
-(function () {
-    var obj = {x: 0, y: 0};
-    var a = ['x', 'y'];
-    obj.watch('z', counter);
-    for (var i = 0; i < 14; i++) {
-        obj.watch(a[+(i > 8)], counter);
-        obj.y = i;
-    }
-})();
-assertEq(hits, 5);
diff --git a/js/src/jit-test/tests/pic/watch2.js b/js/src/jit-test/tests/pic/watch2.js
deleted file mode 100644
index fb3e29617..000000000
--- a/js/src/jit-test/tests/pic/watch2.js
+++ /dev/null
@@ -1,8 +0,0 @@
-// assignments to watched properties via ++ must not be cached
-var obj = {x: 0};
-var hits = 0;
-obj.watch("x", function (id, oldval, newval) { hits++; return newval; });
-for (var i = 0; i < 10; i++)
-    obj.x++;
-assertEq(hits, 10);
-
diff --git a/js/src/jit-test/tests/pic/watch2a.js b/js/src/jit-test/tests/pic/watch2a.js
deleted file mode 100644
index ce3294ba3..000000000
--- a/js/src/jit-test/tests/pic/watch2a.js
+++ /dev/null
@@ -1,18 +0,0 @@
-// assignments to watched properties via ++ must not be traced
-var hits = 0;
-function counter(id, oldval, newval) {
-    hits++;
-    return newval;
-}
-
-(function () {
-    var obj = {x: 0, y: 0};
-    var a = ['x', 'y'];
-    obj.watch('z', counter);
-    for (var i = 0; i < 14; i++) {
-        obj.watch(a[+(i > 8)], counter);
-        obj.y++;
-    }
-})();
-assertEq(hits, 5);
-
diff --git a/js/src/jit-test/tests/pic/watch3.js b/js/src/jit-test/tests/pic/watch3.js
deleted file mode 100644
index 4c5c93d8b..000000000
--- a/js/src/jit-test/tests/pic/watch3.js
+++ /dev/null
@@ -1,7 +0,0 @@
-// assignment to watched global properties must not be cached
-x = 0;
-var hits = 0;
-this.watch("x", function (id, oldval, newval) { hits++; return newval; });
-for (var i = 0; i < 10; i++)
-    x = i;
-assertEq(hits, 10);
diff --git a/js/src/jit-test/tests/pic/watch3a.js b/js/src/jit-test/tests/pic/watch3a.js
deleted file mode 100644
index 700daf6af..000000000
--- a/js/src/jit-test/tests/pic/watch3a.js
+++ /dev/null
@@ -1,19 +0,0 @@
-// assignment to watched global properties must not be traced
-var hits = 0;
-function counter(id, oldval, newval) {
-    hits++;
-    return newval;
-}
-
-var x = 0;
-var y = 0;
-(function () {
-    var a = ['x', 'y'];
-    this.watch('z', counter);
-    for (var i = 0; i < 14; i++) {
-        this.watch(a[+(i > 8)], counter);
-        y = 1;
-    }
-})();
-assertEq(hits, 5);
-
diff --git a/js/src/jit-test/tests/pic/watch3b.js b/js/src/jit-test/tests/pic/watch3b.js
deleted file mode 100644
index 9b0dc8cc9..000000000
--- a/js/src/jit-test/tests/pic/watch3b.js
+++ /dev/null
@@ -1,20 +0,0 @@
-// assignment to watched global properties must not be traced
-var hits = 0;
-function counter(id, oldval, newval) {
-    hits++;
-    return newval;
-}
-
-var x = 0;
-var y = 0;
-function f() {
-    var a = [{}, this];
-    for (var i = 0; i < 14; i++) {
-        print(shapeOf(this));
-        Object.prototype.watch.call(a[+(i > 8)], "y", counter);
-        y++;
-    }
-}
-f();
-assertEq(hits, 5);
-
diff --git a/js/src/jit-test/tests/pic/watch4.js b/js/src/jit-test/tests/pic/watch4.js
deleted file mode 100644
index 4b640c4df..000000000
--- a/js/src/jit-test/tests/pic/watch4.js
+++ /dev/null
@@ -1,9 +0,0 @@
-// adding assignment + watchpoint vs. caching
-var hits = 0;
-var obj = {};
-obj.watch("x", function (id, oldval, newval) { hits++; return newval; });
-for (var i = 0; i < 10; i++) {
-    obj.x = 1;
-    delete obj.x;
-}
-assertEq(hits, 10);
diff --git a/js/src/jit-test/tests/pic/watch5.js b/js/src/jit-test/tests/pic/watch5.js
deleted file mode 100644
index 6b22951a4..000000000
--- a/js/src/jit-test/tests/pic/watch5.js
+++ /dev/null
@@ -1,27 +0,0 @@
-// test against future pic support for symbols
-
-// assignments to watched objects must not be cached
-var obj = {};
-var x = Symbol.for("x");
-obj[x] = 0;
-var hits = 0;
-obj.watch(x, function (id, oldval, newval) { hits++; return newval; });
-for (var i = 0; i < 10; i++)
-    obj[x] = i;
-assertEq(hits, 10);
-
-// assignments to watched properties via ++ must not be cached
-hits = 0;
-for (var i = 0; i < 10; i++)
-    obj[x]++;
-assertEq(hits, 10);
-
-// adding assignment + watchpoint vs. caching
-hits = 0;
-obj = {};
-obj.watch(x, function (id, oldval, newval) { hits++; return newval; });
-for (var i = 0; i < 10; i++) {
-    obj[x] = 1;
-    delete obj[x];
-}
-assertEq(hits, 10);
diff --git a/js/src/jit-test/tests/profiler/bug1140643.js b/js/src/jit-test/tests/profiler/bug1140643.js
deleted file mode 100644
index 1b171aea2..000000000
--- a/js/src/jit-test/tests/profiler/bug1140643.js
+++ /dev/null
@@ -1,14 +0,0 @@
-// |jit-test| allow-oom
-enableSPSProfiling();
-loadFile('\
-for (var i = 0; i < 2; i++) {\
-    obj = { m: function () {} };\
-    obj.watch("m", function () { float32 = 0 + obj.foo; });\
-    obj.m = 0;\
-}\
-');
-gcparam("maxBytes", gcparam("gcBytes") + (1)*1024);
-newGlobal("same-compartment");
-function loadFile(lfVarx) {
-  evaluate(lfVarx, { noScriptRval : true, isRunOnce : true }); 
-}
diff --git a/js/src/jit/BaselineIC.cpp b/js/src/jit/BaselineIC.cpp
index a001357f8..9530f65fa 100644
--- a/js/src/jit/BaselineIC.cpp
+++ b/js/src/jit/BaselineIC.cpp
@@ -4053,9 +4053,6 @@ TryAttachSetValuePropStub(JSContext* cx, HandleScript script, jsbytecode* pc, IC
 {
     MOZ_ASSERT(!*attached);
 
-    if (obj->watched())
-        return true;
-
     RootedShape shape(cx);
     RootedObject holder(cx);
     if (!EffectlesslyLookupProperty(cx, obj, id, &holder, &shape))
@@ -4151,9 +4148,6 @@ TryAttachSetAccessorPropStub(JSContext* cx, HandleScript script, jsbytecode* pc,
     MOZ_ASSERT(!*attached);
     MOZ_ASSERT(!*isTemporarilyUnoptimizable);
 
-    if (obj->watched())
-        return true;
-
     RootedShape shape(cx);
     RootedObject holder(cx);
     if (!EffectlesslyLookupProperty(cx, obj, id, &holder, &shape))
diff --git a/js/src/jit/IonAnalysis.cpp b/js/src/jit/IonAnalysis.cpp
index 5fc624fb1..ace6cd81e 100644
--- a/js/src/jit/IonAnalysis.cpp
+++ b/js/src/jit/IonAnalysis.cpp
@@ -4005,7 +4005,7 @@ jit::ConvertLinearInequality(TempAllocator& alloc, MBasicBlock* block, const Lin
 }
 
 static bool
-AnalyzePoppedThis(JSContext* cx, ObjectGroup* group,
+AnalyzePoppedThis(JSContext* cx, DPAConstraintInfo& constraintInfo, ObjectGroup* group,
                   MDefinition* thisValue, MInstruction* ins, bool definitelyExecuted,
                   HandlePlainObject baseobj,
                   Vector<TypeNewScript::Initializer>* initializerList,
@@ -4046,7 +4046,12 @@ AnalyzePoppedThis(JSContext* cx, ObjectGroup* group,
             return true;
 
         RootedId id(cx, NameToId(setprop->name()));
-        if (!AddClearDefiniteGetterSetterForPrototypeChain(cx, group, id)) {
+        bool added = false;
+        if (!AddClearDefiniteGetterSetterForPrototypeChain(cx, constraintInfo,
+                                                           group, id, &added)) {
+            return false;
+        }
+        if (!added) {
             // The prototype chain already contains a getter/setter for this
             // property, or type information is too imprecise.
             return true;
@@ -4106,7 +4111,12 @@ AnalyzePoppedThis(JSContext* cx, ObjectGroup* group,
         if (!baseobj->lookup(cx, id) && !accessedProperties->append(get->name()))
             return false;
 
-        if (!AddClearDefiniteGetterSetterForPrototypeChain(cx, group, id)) {
+        bool added = false;
+        if (!AddClearDefiniteGetterSetterForPrototypeChain(cx, constraintInfo,
+                                                           group, id, &added)) {
+            return false;
+        }
+        if (!added) {
             // The |this| value can escape if any property reads it does go
             // through a getter.
             return true;
@@ -4132,8 +4142,11 @@ CmpInstructions(const void* a, const void* b)
 }
 
 bool
-jit::AnalyzeNewScriptDefiniteProperties(JSContext* cx, HandleFunction fun,
-                                        ObjectGroup* group, HandlePlainObject baseobj,
+jit::AnalyzeNewScriptDefiniteProperties(JSContext* cx,
+                                        DPAConstraintInfo& constraintInfo,
+                                        HandleFunction fun,
+                                        ObjectGroup* group,
+                                        HandlePlainObject baseobj,
                                         Vector<TypeNewScript::Initializer>* initializerList)
 {
     MOZ_ASSERT(cx->zone()->types.activeAnalysis);
@@ -4293,7 +4306,7 @@ jit::AnalyzeNewScriptDefiniteProperties(JSContext* cx, HandleFunction fun,
 
         bool handled = false;
         size_t slotSpan = baseobj->slotSpan();
-        if (!AnalyzePoppedThis(cx, group, thisValue, ins, definitelyExecuted,
+        if (!AnalyzePoppedThis(cx, constraintInfo, group, thisValue, ins, definitelyExecuted,
                                baseobj, initializerList, &accessedProperties, &handled))
         {
             return false;
@@ -4312,7 +4325,6 @@ jit::AnalyzeNewScriptDefiniteProperties(JSContext* cx, HandleFunction fun,
         // contingent on the correct frames being inlined. Add constraints to
         // invalidate the definite properties if additional functions could be
         // called at the inline frame sites.
-        Vector<MBasicBlock*> exitBlocks(cx);
         for (MBasicBlockIterator block(graph.begin()); block != graph.end(); block++) {
             // Inlining decisions made after the last new property was added to
             // the object don't need to be frozen.
@@ -4320,9 +4332,11 @@ jit::AnalyzeNewScriptDefiniteProperties(JSContext* cx, HandleFunction fun,
                 break;
             if (MResumePoint* rp = block->callerResumePoint()) {
                 if (block->numPredecessors() == 1 && block->getPredecessor(0) == rp->block()) {
-                    JSScript* script = rp->block()->info().script();
-                    if (!AddClearDefiniteFunctionUsesInScript(cx, group, script, block->info().script()))
+                    JSScript* caller = rp->block()->info().script();
+                    JSScript* callee = block->info().script();
+                    if (!constraintInfo.addInliningConstraint(caller, callee)) {
                         return false;
+                    }
                 }
             }
         }
diff --git a/js/src/jit/IonAnalysis.h b/js/src/jit/IonAnalysis.h
index efd31415b..49bc0b591 100644
--- a/js/src/jit/IonAnalysis.h
+++ b/js/src/jit/IonAnalysis.h
@@ -196,8 +196,11 @@ MCompare*
 ConvertLinearInequality(TempAllocator& alloc, MBasicBlock* block, const LinearSum& sum);
 
 MOZ_MUST_USE bool
-AnalyzeNewScriptDefiniteProperties(JSContext* cx, HandleFunction fun,
-                                   ObjectGroup* group, HandlePlainObject baseobj,
+AnalyzeNewScriptDefiniteProperties(JSContext* cx,
+                                   DPAConstraintInfo& constraintInfo,
+                                   HandleFunction fun,
+                                   ObjectGroup* group,
+                                   HandlePlainObject baseobj,
                                    Vector<TypeNewScript::Initializer>* initializerList);
 
 MOZ_MUST_USE bool
diff --git a/js/src/jit/IonBuilder.cpp b/js/src/jit/IonBuilder.cpp
index 2d053de5a..0c69729a4 100644
--- a/js/src/jit/IonBuilder.cpp
+++ b/js/src/jit/IonBuilder.cpp
@@ -8895,10 +8895,8 @@ IonBuilder::jsop_getimport(PropertyName* name)
 
     if (!emitted) {
         // This can happen if we don't have type information.
-        TypeSet::ObjectKey* staticKey = TypeSet::ObjectKey::get(targetEnv);
         TemporaryTypeSet* types = bytecodeTypes(pc);
-        BarrierKind barrier = PropertyReadNeedsTypeBarrier(analysisContext, constraints(), staticKey,
-                                                           name, types, /* updateObserved = */ true);
+        BarrierKind barrier = BarrierKind::TypeSet;
 
         if (!loadStaticSlot(targetEnv, barrier, types, shape->slot()))
             return false;
diff --git a/js/src/jit/IonCaches.cpp b/js/src/jit/IonCaches.cpp
index 48e0792bb..fb4291188 100644
--- a/js/src/jit/IonCaches.cpp
+++ b/js/src/jit/IonCaches.cpp
@@ -3232,7 +3232,7 @@ SetPropertyIC::tryAttachStub(JSContext* cx, HandleScript outerScript, IonScript*
     MOZ_ASSERT(!*emitted);
     MOZ_ASSERT(!*tryNativeAddSlot);
 
-    if (!canAttachStub() || obj->watched())
+    if (!canAttachStub())
         return true;
 
     // Fail cache emission if the object is frozen
@@ -3897,9 +3897,6 @@ IsDenseElementSetInlineable(JSObject* obj, const Value& idval, const ConstantOrR
     if (!obj->is<ArrayObject>())
         return false;
 
-    if (obj->watched())
-        return false;
-
     if (!idval.isInt32())
         return false;
 
diff --git a/js/src/jit/arm/MacroAssembler-arm.cpp b/js/src/jit/arm/MacroAssembler-arm.cpp
index a4161ab00..3421001f7 100644
--- a/js/src/jit/arm/MacroAssembler-arm.cpp
+++ b/js/src/jit/arm/MacroAssembler-arm.cpp
@@ -3462,8 +3462,8 @@ MacroAssemblerARMCompat::storePayload(const Value& val, const Address& dest)
     ScratchRegisterScope scratch(asMasm());
     SecondScratchRegisterScope scratch2(asMasm());
 
-    if (val.isMarkable())
-        ma_mov(ImmGCPtr(val.toMarkablePointer()), scratch);
+    if (val.isGCThing())
+        ma_mov(ImmGCPtr(val.toGCThing()), scratch);
     else
         ma_mov(Imm32(val.toNunboxPayload()), scratch);
     ma_str(scratch, ToPayload(dest), scratch2);
diff --git a/js/src/js.msg b/js/src/js.msg
index f57b36a90..1612c831d 100644
--- a/js/src/js.msg
+++ b/js/src/js.msg
@@ -47,7 +47,6 @@ MSG_DEF(JSMSG_MORE_ARGS_NEEDED,        3, JSEXN_TYPEERR, "{0} requires more than
 MSG_DEF(JSMSG_INCOMPATIBLE_PROTO,      3, JSEXN_TYPEERR, "{0}.prototype.{1} called on incompatible {2}")
 MSG_DEF(JSMSG_NO_CONSTRUCTOR,          1, JSEXN_TYPEERR, "{0} has no constructor")
 MSG_DEF(JSMSG_BAD_SORT_ARG,            0, JSEXN_TYPEERR, "invalid Array.prototype.sort argument")
-MSG_DEF(JSMSG_CANT_WATCH,              1, JSEXN_TYPEERR, "can't watch non-native objects of class {0}")
 MSG_DEF(JSMSG_READ_ONLY,               1, JSEXN_TYPEERR, "{0} is read-only")
 MSG_DEF(JSMSG_CANT_DELETE,             1, JSEXN_TYPEERR, "property {0} is non-configurable and can't be deleted")
 MSG_DEF(JSMSG_CANT_TRUNCATE_ARRAY,     0, JSEXN_TYPEERR, "can't delete non-configurable array element")
@@ -72,7 +71,6 @@ MSG_DEF(JSMSG_UNDEFINED_PROP,          1, JSEXN_REFERENCEERR, "reference to unde
 MSG_DEF(JSMSG_INVALID_MAP_ITERABLE,    1, JSEXN_TYPEERR, "iterable for {0} should have array-like objects")
 MSG_DEF(JSMSG_NESTING_GENERATOR,       0, JSEXN_TYPEERR, "already executing generator")
 MSG_DEF(JSMSG_INCOMPATIBLE_METHOD,     3, JSEXN_TYPEERR, "{0} {1} called on incompatible {2}")
-MSG_DEF(JSMSG_OBJECT_WATCH_DEPRECATED, 0, JSEXN_WARN, "Object.prototype.watch and unwatch are very slow, non-standard, and deprecated; use a getter/setter instead")
 MSG_DEF(JSMSG_ARRAYBUFFER_SLICE_DEPRECATED, 0, JSEXN_WARN, "ArrayBuffer.slice is deprecated; use ArrayBuffer.prototype.slice instead")
 MSG_DEF(JSMSG_BAD_SURROGATE_CHAR,      1, JSEXN_TYPEERR, "bad surrogate character {0}")
 MSG_DEF(JSMSG_UTF8_CHAR_TOO_LARGE,     1, JSEXN_TYPEERR, "UTF-8 character {0} too large")
diff --git a/js/src/jsapi.cpp b/js/src/jsapi.cpp
index 84a315587..f9a0c6a6b 100644
--- a/js/src/jsapi.cpp
+++ b/js/src/jsapi.cpp
@@ -39,7 +39,6 @@
 #include "jsstr.h"
 #include "jstypes.h"
 #include "jsutil.h"
-#include "jswatchpoint.h"
 #include "jsweakmap.h"
 #include "jswrapper.h"
 
@@ -2011,6 +2010,28 @@ JS_GetOwnUCPropertyDescriptor(JSContext* cx, HandleObject obj, const char16_t* n
 }
 
 JS_PUBLIC_API(bool)
+JS_GetOwnElement(JSContext* cx, JS::HandleObject obj, uint32_t index, JS::MutableHandleValue vp)
+{
+    RootedId id(cx);
+    if (!IndexToId(cx, index, &id)) {
+        return false;
+    }
+
+    Rooted<PropertyDescriptor> desc(cx);
+    if (!JS_GetOwnPropertyDescriptorById(cx, obj, id, &desc)) {
+        return false;
+    }
+
+    if (desc.object() && desc.isDataDescriptor()) {
+        vp.set(desc.value());
+    } else {
+        vp.setUndefined();
+    }
+
+    return true;
+}
+
+JS_PUBLIC_API(bool)
 JS_GetPropertyDescriptorById(JSContext* cx, HandleObject obj, HandleId id,
                              MutableHandle<PropertyDescriptor> desc)
 {
diff --git a/js/src/jsapi.h b/js/src/jsapi.h
index 67b3d4267..dc00c650d 100644
--- a/js/src/jsapi.h
+++ b/js/src/jsapi.h
@@ -2922,6 +2922,9 @@ extern JS_PUBLIC_API(bool)
 JS_GetOwnUCPropertyDescriptor(JSContext* cx, JS::HandleObject obj, const char16_t* name, size_t namelen,
                               JS::MutableHandle<JS::PropertyDescriptor> desc);
 
+extern JS_PUBLIC_API(bool)
+JS_GetOwnElement(JSContext* cx, JS::HandleObject obj, uint32_t index, JS::MutableHandleValue vp);
+
 /**
  * Like JS_GetOwnPropertyDescriptorById, but also searches the prototype chain
  * if no own property is found directly on obj. The object on which the
diff --git a/js/src/jscntxt.cpp b/js/src/jscntxt.cpp
index e505a4b34..23b9d27ae 100644
--- a/js/src/jscntxt.cpp
+++ b/js/src/jscntxt.cpp
@@ -37,7 +37,6 @@
 #include "jsscript.h"
 #include "jsstr.h"
 #include "jstypes.h"
-#include "jswatchpoint.h"
 
 #include "gc/Marking.h"
 #include "jit/Ion.h"
diff --git a/js/src/jscompartment.cpp b/js/src/jscompartment.cpp
index d0caeb558..8ba186b08 100644
--- a/js/src/jscompartment.cpp
+++ b/js/src/jscompartment.cpp
@@ -13,7 +13,6 @@
 #include "jsfriendapi.h"
 #include "jsgc.h"
 #include "jsiter.h"
-#include "jswatchpoint.h"
 #include "jswrapper.h"
 
 #include "gc/Marking.h"
@@ -76,7 +75,6 @@ JSCompartment::JSCompartment(Zone* zone, const JS::CompartmentOptions& options =
     gcIncomingGrayPointers(nullptr),
     debugModeBits(0),
     randomKeyGenerator_(runtime_->forkRandomKeyGenerator()),
-    watchpointMap(nullptr),
     scriptCountsMap(nullptr),
     debugScriptMap(nullptr),
     debugEnvs(nullptr),
@@ -103,7 +101,6 @@ JSCompartment::~JSCompartment()
         rt->lcovOutput.writeLCovResult(lcovOutput);
 
     js_delete(jitCompartment_);
-    js_delete(watchpointMap);
     js_delete(scriptCountsMap);
     js_delete(debugScriptMap);
     js_delete(debugEnvs);
@@ -662,12 +659,6 @@ JSCompartment::traceRoots(JSTracer* trc, js::gc::GCRuntime::TraceOrMarkRuntime t
     if (traceOrMark == js::gc::GCRuntime::MarkRuntime && !zone()->isCollecting())
         return;
 
-    // During a GC, these are treated as weak pointers.
-    if (traceOrMark == js::gc::GCRuntime::TraceRuntime) {
-        if (watchpointMap)
-            watchpointMap->markAll(trc);
-    }
-
     /* Mark debug scopes, if present */
     if (debugEnvs)
         debugEnvs->mark(trc);
@@ -712,9 +703,6 @@ JSCompartment::traceRoots(JSTracer* trc, js::gc::GCRuntime::TraceOrMarkRuntime t
 void
 JSCompartment::finishRoots()
 {
-    if (watchpointMap)
-        watchpointMap->clear();
-
     if (debugEnvs)
         debugEnvs->finish();
 
diff --git a/js/src/jscompartment.h b/js/src/jscompartment.h
index 83c15da3b..05ff40b43 100644
--- a/js/src/jscompartment.h
+++ b/js/src/jscompartment.h
@@ -282,7 +282,6 @@ class MOZ_RAII AutoSetNewObjectMetadata : private JS::CustomAutoRooter
 namespace js {
 class DebugEnvironments;
 class ObjectWeakMap;
-class WatchpointMap;
 class WeakMapBase;
 } // namespace js
 
@@ -811,8 +810,6 @@ struct JSCompartment
     void sweepBreakpoints(js::FreeOp* fop);
 
   public:
-    js::WatchpointMap* watchpointMap;
-
     js::ScriptCountsMap* scriptCountsMap;
 
     js::DebugScriptMap* debugScriptMap;
diff --git a/js/src/jsexn.cpp b/js/src/jsexn.cpp
index 65cc81a1a..3fc9200c1 100644
--- a/js/src/jsexn.cpp
+++ b/js/src/jsexn.cpp
@@ -205,7 +205,12 @@ size_t
 ExtraMallocSize(JSErrorReport* report)
 {
     if (report->linebuf())
-        return (report->linebufLength() + 1) * sizeof(char16_t);
+	/*
+	 * Mozilla bug 1352449. Count with null
+	 * terminator and alignment. See CopyExtraData for
+	 * the details about alignment.
+	 */    
+        return (report->linebufLength() + 1) * sizeof(char16_t) + 1;
 
     return 0;
 }
@@ -220,10 +225,20 @@ bool
 CopyExtraData(JSContext* cx, uint8_t** cursor, JSErrorReport* copy, JSErrorReport* report)
 {
     if (report->linebuf()) {
+	/*
+	 * Make sure cursor is properly aligned for char16_t for platforms
+	 * which need it and it's at the end of the buffer on exit.
+	 */
+	size_t alignment_backlog = 0;
+        if (size_t(*cursor) % 2)
+	    (*cursor)++;
+        else
+	    alignment_backlog = 1;	
+
         size_t linebufSize = (report->linebufLength() + 1) * sizeof(char16_t);
         const char16_t* linebufCopy = (const char16_t*)(*cursor);
         js_memcpy(*cursor, report->linebuf(), linebufSize);
-        *cursor += linebufSize;
+        *cursor += linebufSize + alignment_backlog;
         copy->initBorrowedLinebuf(linebufCopy, report->linebufLength(), report->tokenOffset());
     }
 
diff --git a/js/src/jsfriendapi.cpp b/js/src/jsfriendapi.cpp
index f7622cb44..bdb3c0a4d 100644
--- a/js/src/jsfriendapi.cpp
+++ b/js/src/jsfriendapi.cpp
@@ -15,7 +15,6 @@
 #include "jsgc.h"
 #include "jsobj.h"
 #include "jsprf.h"
-#include "jswatchpoint.h"
 #include "jsweakmap.h"
 #include "jswrapper.h"
 
@@ -579,7 +578,6 @@ void
 js::TraceWeakMaps(WeakMapTracer* trc)
 {
     WeakMapBase::traceAllMappings(trc);
-    WatchpointMap::traceAll(trc);
 }
 
 extern JS_FRIEND_API(bool)
diff --git a/js/src/jsfriendapi.h b/js/src/jsfriendapi.h
index 351667fb3..491215456 100644
--- a/js/src/jsfriendapi.h
+++ b/js/src/jsfriendapi.h
@@ -2110,30 +2110,6 @@ JS_FRIEND_API(void*)
 JS_GetDataViewData(JSObject* obj, const JS::AutoCheckCannotGC&);
 
 namespace js {
-
-/**
- * Add a watchpoint -- in the Object.prototype.watch sense -- to |obj| for the
- * property |id|, using the callable object |callable| as the function to be
- * called for notifications.
- *
- * This is an internal function exposed -- temporarily -- only so that DOM
- * proxies can be watchable.  Don't use it!  We'll soon kill off the
- * Object.prototype.{,un}watch functions, at which point this will go too.
- */
-extern JS_FRIEND_API(bool)
-WatchGuts(JSContext* cx, JS::HandleObject obj, JS::HandleId id, JS::HandleObject callable);
-
-/**
- * Remove a watchpoint -- in the Object.prototype.watch sense -- from |obj| for
- * the property |id|.
- *
- * This is an internal function exposed -- temporarily -- only so that DOM
- * proxies can be watchable.  Don't use it!  We'll soon kill off the
- * Object.prototype.{,un}watch functions, at which point this will go too.
- */
-extern JS_FRIEND_API(bool)
-UnwatchGuts(JSContext* cx, JS::HandleObject obj, JS::HandleId id);
-
 namespace jit {
 
 enum class InlinableNative : uint16_t;
diff --git a/js/src/jsgc.cpp b/js/src/jsgc.cpp
index b2ee8d67b..5a9d732b6 100644
--- a/js/src/jsgc.cpp
+++ b/js/src/jsgc.cpp
@@ -207,7 +207,6 @@
 #include "jsscript.h"
 #include "jstypes.h"
 #include "jsutil.h"
-#include "jswatchpoint.h"
 #include "jsweakmap.h"
 #ifdef XP_WIN
 # include "jswin.h"
@@ -2392,11 +2391,6 @@ GCRuntime::updatePointersToRelocatedCells(Zone* zone, AutoLockForExclusiveAccess
         Debugger::markIncomingCrossCompartmentEdges(&trc);
 
         WeakMapBase::markAll(zone, &trc);
-        for (CompartmentsInZoneIter c(zone); !c.done(); c.next()) {
-            c->trace(&trc);
-            if (c->watchpointMap)
-                c->watchpointMap->markAll(&trc);
-        }
 
         // Mark all gray roots, making sure we call the trace callback to get the
         // current set.
@@ -2405,7 +2399,6 @@ GCRuntime::updatePointersToRelocatedCells(Zone* zone, AutoLockForExclusiveAccess
     }
 
     // Sweep everything to fix up weak pointers
-    WatchpointMap::sweepAll(rt);
     Debugger::sweepAll(rt->defaultFreeOp());
     jit::JitRuntime::SweepJitcodeGlobalTable(rt);
     rt->gc.sweepZoneAfterCompacting(zone);
@@ -3850,10 +3843,6 @@ GCRuntime::markWeakReferences(gcstats::Phase phase)
             for (ZoneIterT zone(rt); !zone.done(); zone.next())
                 markedAny |= WeakMapBase::markZoneIteratively(zone, &marker);
         }
-        for (CompartmentsIterT<ZoneIterT> c(rt); !c.done(); c.next()) {
-            if (c->watchpointMap)
-                markedAny |= c->watchpointMap->markIteratively(&marker);
-        }
         markedAny |= Debugger::markAllIteratively(&marker);
         markedAny |= jit::JitRuntime::MarkJitcodeGlobalTableIteratively(&marker);
 
@@ -4625,9 +4614,6 @@ GCRuntime::beginSweepingZoneGroup(AutoLockForExclusiveAccess& lock)
             // Bug 1071218: the following two methods have not yet been
             // refactored to work on a single zone-group at once.
 
-            // Collect watch points associated with unreachable objects.
-            WatchpointMap::sweepAll(rt);
-
             // Detach unreachable debuggers and global objects from each other.
             Debugger::sweepAll(&fop);
 
diff --git a/js/src/jsnativestack.cpp b/js/src/jsnativestack.cpp
index 98f8fc741..4e96e01e8 100644
--- a/js/src/jsnativestack.cpp
+++ b/js/src/jsnativestack.cpp
@@ -26,11 +26,7 @@
 #  include <sys/syscall.h>
 #  include <sys/types.h>
 #  include <unistd.h>
-static pid_t
-gettid()
-{
-    return syscall(__NR_gettid);
-}
+#  define gettid() static_cast<pid_t>(syscall(SYS_gettid))
 # endif
 
 #else
@@ -71,6 +67,20 @@ js::GetNativeStackBaseImpl()
 # endif
 }
 
+#elif defined(XP_SOLARIS)
+
+#include <ucontext.h>
+
+JS_STATIC_ASSERT(JS_STACK_GROWTH_DIRECTION < 0);
+
+void* 
+js::GetNativeStackBaseImpl()
+{
+	 stack_t st;
+	 stack_getbounds(&st);
+	 return static_cast<char*>(st.ss_sp) + st.ss_size;
+}
+
 #elif defined(XP_LINUX) && !defined(ANDROID) && defined(__GLIBC__)
 void*
 js::GetNativeStackBaseImpl()
diff --git a/js/src/jsobj.cpp b/js/src/jsobj.cpp
index 6f9596924..ef1291079 100644
--- a/js/src/jsobj.cpp
+++ b/js/src/jsobj.cpp
@@ -33,7 +33,6 @@
 #include "jsstr.h"
 #include "jstypes.h"
 #include "jsutil.h"
-#include "jswatchpoint.h"
 #include "jswin.h"
 #include "jswrapper.h"
 
@@ -1011,13 +1010,7 @@ js::CreateThisForFunction(JSContext* cx, HandleObject callee, HandleObject newTa
 JSObject::nonNativeSetProperty(JSContext* cx, HandleObject obj, HandleId id, HandleValue v,
                                HandleValue receiver, ObjectOpResult& result)
 {
-    RootedValue value(cx, v);
-    if (MOZ_UNLIKELY(obj->watched())) {
-        WatchpointMap* wpmap = cx->compartment()->watchpointMap;
-        if (wpmap && !wpmap->triggerWatchpoint(cx, obj, id, &value))
-            return false;
-    }
-    return obj->getOpsSetProperty()(cx, obj, id, value, receiver, result);
+    return obj->getOpsSetProperty()(cx, obj, id, v, receiver, result);
 }
 
 /* static */ bool
@@ -2795,68 +2788,6 @@ js::GetPropertyDescriptor(JSContext* cx, HandleObject obj, HandleId id,
     return true;
 }
 
-bool
-js::WatchGuts(JSContext* cx, JS::HandleObject origObj, JS::HandleId id, JS::HandleObject callable)
-{
-    RootedObject obj(cx, ToWindowIfWindowProxy(origObj));
-    if (obj->isNative()) {
-        // Use sparse indexes for watched objects, as dense elements can be
-        // written to without checking the watchpoint map.
-        if (!NativeObject::sparsifyDenseElements(cx, obj.as<NativeObject>()))
-            return false;
-
-        MarkTypePropertyNonData(cx, obj, id);
-    }
-
-    WatchpointMap* wpmap = cx->compartment()->watchpointMap;
-    if (!wpmap) {
-        wpmap = cx->runtime()->new_<WatchpointMap>();
-        if (!wpmap || !wpmap->init()) {
-            ReportOutOfMemory(cx);
-            js_delete(wpmap);
-            return false;
-        }
-        cx->compartment()->watchpointMap = wpmap;
-    }
-
-    return wpmap->watch(cx, obj, id, js::WatchHandler, callable);
-}
-
-bool
-js::UnwatchGuts(JSContext* cx, JS::HandleObject origObj, JS::HandleId id)
-{
-    // Looking in the map for an unsupported object will never hit, so we don't
-    // need to check for nativeness or watchable-ness here.
-    RootedObject obj(cx, ToWindowIfWindowProxy(origObj));
-    if (WatchpointMap* wpmap = cx->compartment()->watchpointMap)
-        wpmap->unwatch(obj, id, nullptr, nullptr);
-    return true;
-}
-
-bool
-js::WatchProperty(JSContext* cx, HandleObject obj, HandleId id, HandleObject callable)
-{
-    if (WatchOp op = obj->getOpsWatch())
-        return op(cx, obj, id, callable);
-
-    if (!obj->isNative() || obj->is<TypedArrayObject>()) {
-        JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_CANT_WATCH,
-                                  obj->getClass()->name);
-        return false;
-    }
-
-    return WatchGuts(cx, obj, id, callable);
-}
-
-bool
-js::UnwatchProperty(JSContext* cx, HandleObject obj, HandleId id)
-{
-    if (UnwatchOp op = obj->getOpsUnwatch())
-        return op(cx, obj, id);
-
-    return UnwatchGuts(cx, obj, id);
-}
-
 const char*
 js::GetObjectClassName(JSContext* cx, HandleObject obj)
 {
@@ -3416,7 +3347,6 @@ JSObject::dump(FILE* fp) const
     if (obj->isBoundFunction()) fprintf(fp, " bound_function");
     if (obj->isQualifiedVarObj()) fprintf(fp, " varobj");
     if (obj->isUnqualifiedVarObj()) fprintf(fp, " unqualified_varobj");
-    if (obj->watched()) fprintf(fp, " watched");
     if (obj->isIteratedSingleton()) fprintf(fp, " iterated_singleton");
     if (obj->isNewGroupUnknown()) fprintf(fp, " new_type_unknown");
     if (obj->hasUncacheableProto()) fprintf(fp, " has_uncacheable_proto");
diff --git a/js/src/jsobj.h b/js/src/jsobj.h
index db2c22b76..01845d7e6 100644
--- a/js/src/jsobj.h
+++ b/js/src/jsobj.h
@@ -141,8 +141,6 @@ class JSObject : public js::gc::Cell
     js::GetOwnPropertyOp getOpsGetOwnPropertyDescriptor()
                                                 const { return getClass()->getOpsGetOwnPropertyDescriptor(); }
     js::DeletePropertyOp getOpsDeleteProperty() const { return getClass()->getOpsDeleteProperty(); }
-    js::WatchOp          getOpsWatch()          const { return getClass()->getOpsWatch(); }
-    js::UnwatchOp        getOpsUnwatch()        const { return getClass()->getOpsUnwatch(); }
     js::GetElementsOp    getOpsGetElements()    const { return getClass()->getOpsGetElements(); }
     JSNewEnumerateOp     getOpsEnumerate()      const { return getClass()->getOpsEnumerate(); }
     JSFunToStringOp      getOpsFunToString()    const { return getClass()->getOpsFunToString(); }
@@ -221,11 +219,6 @@ class JSObject : public js::gc::Cell
     inline bool isBoundFunction() const;
     inline bool hasSpecialEquality() const;
 
-    inline bool watched() const;
-    static bool setWatched(js::ExclusiveContext* cx, JS::HandleObject obj) {
-        return setFlags(cx, obj, js::BaseShape::WATCHED, GENERATE_SHAPE);
-    }
-
     // A "qualified" varobj is the object on which "qualified" variable
     // declarations (i.e., those defined with "var") are kept.
     //
@@ -1032,21 +1025,6 @@ extern bool
 DefineFunctions(JSContext* cx, HandleObject obj, const JSFunctionSpec* fs,
                 DefineAsIntrinsic intrinsic);
 
-/*
- * Set a watchpoint: a synchronous callback when the given property of the
- * given object is set.
- *
- * Watchpoints are nonstandard and do not fit in well with the way ES6
- * specifies [[Set]]. They are also insufficient for implementing
- * Object.observe.
- */
-extern bool
-WatchProperty(JSContext* cx, HandleObject obj, HandleId id, HandleObject callable);
-
-/* Clear a watchpoint. */
-extern bool
-UnwatchProperty(JSContext* cx, HandleObject obj, HandleId id);
-
 /* ES6 draft rev 36 (2015 March 17) 7.1.1 ToPrimitive(vp[, preferredType]) */
 extern bool
 ToPrimitiveSlow(JSContext* cx, JSType hint, MutableHandleValue vp);
diff --git a/js/src/jsobjinlines.h b/js/src/jsobjinlines.h
index c132ee6b2..98e740142 100644
--- a/js/src/jsobjinlines.h
+++ b/js/src/jsobjinlines.h
@@ -464,12 +464,6 @@ JSObject::isBoundFunction() const
 }
 
 inline bool
-JSObject::watched() const
-{
-    return hasAllFlags(js::BaseShape::WATCHED);
-}
-
-inline bool
 JSObject::isDelegate() const
 {
     return hasAllFlags(js::BaseShape::DELEGATE);
diff --git a/js/src/jsversion.h b/js/src/jsversion.h
index 8bdfe47b6..cf4c6e73a 100644
--- a/js/src/jsversion.h
+++ b/js/src/jsversion.h
@@ -12,7 +12,6 @@
  */
 #define JS_HAS_STR_HTML_HELPERS 1       /* (no longer used) */
 #define JS_HAS_OBJ_PROTO_PROP   1       /* has o.__proto__ etc. */
-#define JS_HAS_OBJ_WATCHPOINT   1       /* has o.watch and o.unwatch */
 #define JS_HAS_TOSOURCE         1       /* has Object/Array toSource method */
 #define JS_HAS_CATCH_GUARD      1       /* has exception handling catch guard */
 #define JS_HAS_UNEVAL           1       /* has uneval() top-level function */
diff --git a/js/src/jswatchpoint.cpp b/js/src/jswatchpoint.cpp
deleted file mode 100644
index 34479a990..000000000
--- a/js/src/jswatchpoint.cpp
+++ /dev/null
@@ -1,246 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
- * vim: set ts=8 sts=4 et sw=4 tw=99:
- * 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/. */
-
-#include "jswatchpoint.h"
-
-#include "jsatom.h"
-#include "jscompartment.h"
-#include "jsfriendapi.h"
-
-#include "gc/Marking.h"
-#include "vm/Shape.h"
-
-#include "jsgcinlines.h"
-
-using namespace js;
-using namespace js::gc;
-
-inline HashNumber
-WatchKeyHasher::hash(const Lookup& key)
-{
-    return MovableCellHasher<PreBarrieredObject>::hash(key.object) ^ HashId(key.id);
-}
-
-namespace {
-
-class AutoEntryHolder {
-    typedef WatchpointMap::Map Map;
-    Generation gen;
-    Map& map;
-    Map::Ptr p;
-    RootedObject obj;
-    RootedId id;
-
-  public:
-    AutoEntryHolder(JSContext* cx, Map& map, Map::Ptr p)
-      : gen(map.generation()), map(map), p(p), obj(cx, p->key().object), id(cx, p->key().id)
-    {
-        MOZ_ASSERT(!p->value().held);
-        p->value().held = true;
-    }
-
-    ~AutoEntryHolder() {
-        if (gen != map.generation())
-            p = map.lookup(WatchKey(obj, id));
-        if (p)
-            p->value().held = false;
-    }
-};
-
-} /* anonymous namespace */
-
-bool
-WatchpointMap::init()
-{
-    return map.init();
-}
-
-bool
-WatchpointMap::watch(JSContext* cx, HandleObject obj, HandleId id,
-                     JSWatchPointHandler handler, HandleObject closure)
-{
-    MOZ_ASSERT(JSID_IS_STRING(id) || JSID_IS_INT(id) || JSID_IS_SYMBOL(id));
-
-    if (!JSObject::setWatched(cx, obj))
-        return false;
-
-    Watchpoint w(handler, closure, false);
-    if (!map.put(WatchKey(obj, id), w)) {
-        ReportOutOfMemory(cx);
-        return false;
-    }
-    /*
-     * For generational GC, we don't need to post-barrier writes to the
-     * hashtable here because we mark all watchpoints as part of root marking in
-     * markAll().
-     */
-    return true;
-}
-
-void
-WatchpointMap::unwatch(JSObject* obj, jsid id,
-                       JSWatchPointHandler* handlerp, JSObject** closurep)
-{
-    if (Map::Ptr p = map.lookup(WatchKey(obj, id))) {
-        if (handlerp)
-            *handlerp = p->value().handler;
-        if (closurep) {
-            // Read barrier to prevent an incorrectly gray closure from escaping the
-            // watchpoint. See the comment before UnmarkGrayChildren in gc/Marking.cpp
-            JS::ExposeObjectToActiveJS(p->value().closure);
-            *closurep = p->value().closure;
-        }
-        map.remove(p);
-    }
-}
-
-void
-WatchpointMap::unwatchObject(JSObject* obj)
-{
-    for (Map::Enum e(map); !e.empty(); e.popFront()) {
-        Map::Entry& entry = e.front();
-        if (entry.key().object == obj)
-            e.removeFront();
-    }
-}
-
-void
-WatchpointMap::clear()
-{
-    map.clear();
-}
-
-bool
-WatchpointMap::triggerWatchpoint(JSContext* cx, HandleObject obj, HandleId id, MutableHandleValue vp)
-{
-    Map::Ptr p = map.lookup(WatchKey(obj, id));
-    if (!p || p->value().held)
-        return true;
-
-    AutoEntryHolder holder(cx, map, p);
-
-    /* Copy the entry, since GC would invalidate p. */
-    JSWatchPointHandler handler = p->value().handler;
-    RootedObject closure(cx, p->value().closure);
-
-    /* Determine the property's old value. */
-    Value old;
-    old.setUndefined();
-    if (obj->isNative()) {
-        NativeObject* nobj = &obj->as<NativeObject>();
-        if (Shape* shape = nobj->lookup(cx, id)) {
-            if (shape->hasSlot())
-                old = nobj->getSlot(shape->slot());
-        }
-    }
-
-    // Read barrier to prevent an incorrectly gray closure from escaping the
-    // watchpoint. See the comment before UnmarkGrayChildren in gc/Marking.cpp
-    JS::ExposeObjectToActiveJS(closure);
-
-    /* Call the handler. */
-    return handler(cx, obj, id, old, vp.address(), closure);
-}
-
-bool
-WatchpointMap::markIteratively(JSTracer* trc)
-{
-    bool marked = false;
-    for (Map::Enum e(map); !e.empty(); e.popFront()) {
-        Map::Entry& entry = e.front();
-        JSObject* priorKeyObj = entry.key().object;
-        jsid priorKeyId(entry.key().id.get());
-        bool objectIsLive =
-            IsMarked(trc->runtime(), const_cast<PreBarrieredObject*>(&entry.key().object));
-        if (objectIsLive || entry.value().held) {
-            if (!objectIsLive) {
-                TraceEdge(trc, const_cast<PreBarrieredObject*>(&entry.key().object),
-                           "held Watchpoint object");
-                marked = true;
-            }
-
-            MOZ_ASSERT(JSID_IS_STRING(priorKeyId) ||
-                       JSID_IS_INT(priorKeyId) ||
-                       JSID_IS_SYMBOL(priorKeyId));
-            TraceEdge(trc, const_cast<PreBarrieredId*>(&entry.key().id), "WatchKey::id");
-
-            if (entry.value().closure && !IsMarked(trc->runtime(), &entry.value().closure)) {
-                TraceEdge(trc, &entry.value().closure, "Watchpoint::closure");
-                marked = true;
-            }
-
-            /* We will sweep this entry in sweepAll if !objectIsLive. */
-            if (priorKeyObj != entry.key().object || priorKeyId != entry.key().id)
-                e.rekeyFront(WatchKey(entry.key().object, entry.key().id));
-        }
-    }
-    return marked;
-}
-
-void
-WatchpointMap::markAll(JSTracer* trc)
-{
-    for (Map::Enum e(map); !e.empty(); e.popFront()) {
-        Map::Entry& entry = e.front();
-        JSObject* object = entry.key().object;
-        jsid id = entry.key().id;
-        JSObject* priorObject = object;
-        jsid priorId = id;
-        MOZ_ASSERT(JSID_IS_STRING(priorId) || JSID_IS_INT(priorId) || JSID_IS_SYMBOL(priorId));
-
-        TraceManuallyBarrieredEdge(trc, &object, "held Watchpoint object");             
-        TraceManuallyBarrieredEdge(trc, &id, "WatchKey::id");		
-        TraceEdge(trc, &entry.value().closure, "Watchpoint::closure");
-
-        if (priorObject != object || priorId != id)
-            e.rekeyFront(WatchKey(object, id));
-    }
-}
-
-void
-WatchpointMap::sweepAll(JSRuntime* rt)
-{
-    for (GCCompartmentsIter c(rt); !c.done(); c.next()) {
-        if (WatchpointMap* wpmap = c->watchpointMap)
-            wpmap->sweep();
-    }
-}
-
-void
-WatchpointMap::sweep()
-{
-    for (Map::Enum e(map); !e.empty(); e.popFront()) {
-        Map::Entry& entry = e.front();
-        JSObject* obj(entry.key().object);
-        if (IsAboutToBeFinalizedUnbarriered(&obj)) {
-            MOZ_ASSERT(!entry.value().held);
-            e.removeFront();
-        } else if (obj != entry.key().object) {
-            e.rekeyFront(WatchKey(obj, entry.key().id));
-        }
-    }
-}
-
-void
-WatchpointMap::traceAll(WeakMapTracer* trc)
-{
-    JSRuntime* rt = trc->context;
-    for (CompartmentsIter comp(rt, SkipAtoms); !comp.done(); comp.next()) {
-        if (WatchpointMap* wpmap = comp->watchpointMap)
-            wpmap->trace(trc);
-    }
-}
-
-void
-WatchpointMap::trace(WeakMapTracer* trc)
-{
-    for (Map::Range r = map.all(); !r.empty(); r.popFront()) {
-        Map::Entry& entry = r.front();
-        trc->trace(nullptr,
-                   JS::GCCellPtr(entry.key().object.get()),
-                   JS::GCCellPtr(entry.value().closure.get()));
-    }
-}
diff --git a/js/src/jswatchpoint.h b/js/src/jswatchpoint.h
deleted file mode 100644
index bba6c38ce..000000000
--- a/js/src/jswatchpoint.h
+++ /dev/null
@@ -1,90 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
- * vim: set ts=8 sts=4 et sw=4 tw=99:
- * 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/. */
-
-#ifndef jswatchpoint_h
-#define jswatchpoint_h
-
-#include "jsalloc.h"
-
-#include "gc/Barrier.h"
-#include "js/HashTable.h"
-
-namespace js {
-
-struct WeakMapTracer;
-
-struct WatchKey {
-    WatchKey() {}
-    WatchKey(JSObject* obj, jsid id) : object(obj), id(id) {}
-    WatchKey(const WatchKey& key) : object(key.object.get()), id(key.id.get()) {}
-
-    // These are traced unconditionally during minor GC, so do not require
-    // post-barriers.
-    PreBarrieredObject object;
-    PreBarrieredId id;
-
-    bool operator!=(const WatchKey& other) const {
-        return object != other.object || id != other.id;
-    }
-};
-
-typedef bool
-(* JSWatchPointHandler)(JSContext* cx, JSObject* obj, jsid id, const JS::Value& old,
-                        JS::Value* newp, void* closure);
-
-struct Watchpoint {
-    JSWatchPointHandler handler;
-    PreBarrieredObject closure;  /* This is always marked in minor GCs and so doesn't require a postbarrier. */
-    bool held;  /* true if currently running handler */
-    Watchpoint(JSWatchPointHandler handler, JSObject* closure, bool held)
-      : handler(handler), closure(closure), held(held) {}
-};
-
-struct WatchKeyHasher
-{
-    typedef WatchKey Lookup;
-    static inline js::HashNumber hash(const Lookup& key);
-
-    static bool match(const WatchKey& k, const Lookup& l) {
-        return MovableCellHasher<PreBarrieredObject>::match(k.object, l.object) &&
-               DefaultHasher<PreBarrieredId>::match(k.id, l.id);
-    }
-
-    static void rekey(WatchKey& k, const WatchKey& newKey) {
-        k.object.unsafeSet(newKey.object);
-        k.id.unsafeSet(newKey.id);
-    }
-};
-
-class WatchpointMap {
-  public:
-    typedef HashMap<WatchKey, Watchpoint, WatchKeyHasher, SystemAllocPolicy> Map;
-
-    bool init();
-    bool watch(JSContext* cx, HandleObject obj, HandleId id,
-               JSWatchPointHandler handler, HandleObject closure);
-    void unwatch(JSObject* obj, jsid id,
-                 JSWatchPointHandler* handlerp, JSObject** closurep);
-    void unwatchObject(JSObject* obj);
-    void clear();
-
-    bool triggerWatchpoint(JSContext* cx, HandleObject obj, HandleId id, MutableHandleValue vp);
-
-    bool markIteratively(JSTracer* trc);
-    void markAll(JSTracer* trc);
-    static void sweepAll(JSRuntime* rt);
-    void sweep();
-
-    static void traceAll(WeakMapTracer* trc);
-    void trace(WeakMapTracer* trc);
-
-  private:
-    Map map;
-};
-
-} // namespace js
-
-#endif /* jswatchpoint_h */
diff --git a/js/src/jswrapper.h b/js/src/jswrapper.h
index 5f3704e32..32336c68b 100644
--- a/js/src/jswrapper.h
+++ b/js/src/jswrapper.h
@@ -315,13 +315,6 @@ class JS_FRIEND_API(SecurityWrapper) : public Base
     virtual bool regexp_toShared(JSContext* cx, HandleObject proxy, RegExpGuard* g) const override;
     virtual bool boxedValue_unbox(JSContext* cx, HandleObject proxy, MutableHandleValue vp) const override;
 
-    // Allow isCallable and isConstructor. They used to be class-level, and so could not be guarded
-    // against.
-
-    virtual bool watch(JSContext* cx, JS::HandleObject proxy, JS::HandleId id,
-                       JS::HandleObject callable) const override;
-    virtual bool unwatch(JSContext* cx, JS::HandleObject proxy, JS::HandleId id) const override;
-
     /*
      * Allow our subclasses to select the superclass behavior they want without
      * needing to specify an exact superclass.
diff --git a/js/src/moz.build b/js/src/moz.build
index a0f074d1c..d1e80b4ce 100644
--- a/js/src/moz.build
+++ b/js/src/moz.build
@@ -291,7 +291,6 @@ UNIFIED_SOURCES += [
     'jspropertytree.cpp',
     'jsscript.cpp',
     'jsstr.cpp',
-    'jswatchpoint.cpp',
     'jsweakmap.cpp',
     'perf/jsperf.cpp',
     'proxy/BaseProxyHandler.cpp',
@@ -721,6 +720,14 @@ if CONFIG['OS_ARCH'] == 'Linux':
         'dl',
     ]
 
+if CONFIG['OS_ARCH'] == 'SunOS':
+    OS_LIBS += [
+        'posix4',
+        'dl',
+        'nsl',
+        'socket',
+    ]
+
 OS_LIBS += CONFIG['REALTIME_LIBS']
 
 CFLAGS += CONFIG['MOZ_ICU_CFLAGS']
diff --git a/js/src/old-configure.in b/js/src/old-configure.in
index 45108ee59..6566ce05e 100644
--- a/js/src/old-configure.in
+++ b/js/src/old-configure.in
@@ -923,6 +923,14 @@ case "$target" in
     fi
     ;;
 
+i*86-*-solaris*)
+    MOZ_FIX_LINK_PATHS="-L${DIST}/bin -R'\$\$ORIGIN':/usr/gcc/7/lib"
+    ;;
+
+x86_64-*-solaris*)
+    MOZ_FIX_LINK_PATHS="-L${DIST}/bin -R'\$\$ORIGIN':/usr/gcc/7/lib/amd64"
+    ;;
+
 esac
 
 dnl Only one oddball right now (QNX), but this gives us flexibility
diff --git a/js/src/proxy/BaseProxyHandler.cpp b/js/src/proxy/BaseProxyHandler.cpp
index 8d5f30a19..423aa8671 100644
--- a/js/src/proxy/BaseProxyHandler.cpp
+++ b/js/src/proxy/BaseProxyHandler.cpp
@@ -419,20 +419,6 @@ BaseProxyHandler::setImmutablePrototype(JSContext* cx, HandleObject proxy, bool*
 }
 
 bool
-BaseProxyHandler::watch(JSContext* cx, HandleObject proxy, HandleId id, HandleObject callable) const
-{
-    JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_CANT_WATCH,
-                              proxy->getClass()->name);
-    return false;
-}
-
-bool
-BaseProxyHandler::unwatch(JSContext* cx, HandleObject proxy, HandleId id) const
-{
-    return true;
-}
-
-bool
 BaseProxyHandler::getElements(JSContext* cx, HandleObject proxy, uint32_t begin, uint32_t end,
                               ElementAdder* adder) const
 {
diff --git a/js/src/proxy/Proxy.cpp b/js/src/proxy/Proxy.cpp
index 2c1cffb77..6b3a3d1e9 100644
--- a/js/src/proxy/Proxy.cpp
+++ b/js/src/proxy/Proxy.cpp
@@ -505,20 +505,6 @@ Proxy::boxedValue_unbox(JSContext* cx, HandleObject proxy, MutableHandleValue vp
 JSObject * const TaggedProto::LazyProto = reinterpret_cast<JSObject*>(0x1);
 
 /* static */ bool
-Proxy::watch(JSContext* cx, JS::HandleObject proxy, JS::HandleId id, JS::HandleObject callable)
-{
-    JS_CHECK_RECURSION(cx, return false);
-    return proxy->as<ProxyObject>().handler()->watch(cx, proxy, id, callable);
-}
-
-/* static */ bool
-Proxy::unwatch(JSContext* cx, JS::HandleObject proxy, JS::HandleId id)
-{
-    JS_CHECK_RECURSION(cx, return false);
-    return proxy->as<ProxyObject>().handler()->unwatch(cx, proxy, id);
-}
-
-/* static */ bool
 Proxy::getElements(JSContext* cx, HandleObject proxy, uint32_t begin, uint32_t end,
                    ElementAdder* adder)
 {
@@ -699,18 +685,6 @@ js::proxy_Construct(JSContext* cx, unsigned argc, Value* vp)
 }
 
 bool
-js::proxy_Watch(JSContext* cx, HandleObject obj, HandleId id, HandleObject callable)
-{
-    return Proxy::watch(cx, obj, id, callable);
-}
-
-bool
-js::proxy_Unwatch(JSContext* cx, HandleObject obj, HandleId id)
-{
-    return Proxy::unwatch(cx, obj, id);
-}
-
-bool
 js::proxy_GetElements(JSContext* cx, HandleObject proxy, uint32_t begin, uint32_t end,
                       ElementAdder* adder)
 {
@@ -750,7 +724,6 @@ const ObjectOps js::ProxyObjectOps = {
     js::proxy_SetProperty,
     js::proxy_GetOwnPropertyDescriptor,
     js::proxy_DeleteProperty,
-    js::proxy_Watch, js::proxy_Unwatch,
     js::proxy_GetElements,
     nullptr,  /* enumerate */
     js::proxy_FunToString
diff --git a/js/src/proxy/Proxy.h b/js/src/proxy/Proxy.h
index 89909a085..4a8ecf8ab 100644
--- a/js/src/proxy/Proxy.h
+++ b/js/src/proxy/Proxy.h
@@ -65,9 +65,6 @@ class Proxy
     static bool regexp_toShared(JSContext* cx, HandleObject proxy, RegExpGuard* g);
     static bool boxedValue_unbox(JSContext* cx, HandleObject proxy, MutableHandleValue vp);
 
-    static bool watch(JSContext* cx, HandleObject proxy, HandleId id, HandleObject callable);
-    static bool unwatch(JSContext* cx, HandleObject proxy, HandleId id);
-
     static bool getElements(JSContext* cx, HandleObject obj, uint32_t begin, uint32_t end,
                             ElementAdder* adder);
 
diff --git a/js/src/proxy/SecurityWrapper.cpp b/js/src/proxy/SecurityWrapper.cpp
index 710faf9b0..71d22fca6 100644
--- a/js/src/proxy/SecurityWrapper.cpp
+++ b/js/src/proxy/SecurityWrapper.cpp
@@ -130,24 +130,5 @@ SecurityWrapper<Base>::defineProperty(JSContext* cx, HandleObject wrapper, Handl
     return Base::defineProperty(cx, wrapper, id, desc, result);
 }
 
-template <class Base>
-bool
-SecurityWrapper<Base>::watch(JSContext* cx, HandleObject proxy,
-                             HandleId id, HandleObject callable) const
-{
-    ReportUnwrapDenied(cx);
-    return false;
-}
-
-template <class Base>
-bool
-SecurityWrapper<Base>::unwatch(JSContext* cx, HandleObject proxy,
-                               HandleId id) const
-{
-    ReportUnwrapDenied(cx);
-    return false;
-}
-
-
 template class js::SecurityWrapper<Wrapper>;
 template class js::SecurityWrapper<CrossCompartmentWrapper>;
diff --git a/js/src/shell/OSObject.cpp b/js/src/shell/OSObject.cpp
index 846ec7b15..4fb3d4e77 100644
--- a/js/src/shell/OSObject.cpp
+++ b/js/src/shell/OSObject.cpp
@@ -184,6 +184,11 @@ FileAsTypedArray(JSContext* cx, JS::HandleString pathnameStr)
                 return nullptr;
             JS_ReportErrorUTF8(cx, "can't seek start of %s", pathname.ptr());
         } else {
+            if (len > INT32_MAX) {
+                JS_ReportErrorUTF8(cx, "file %s is too large for a Uint8Array",
+                                   pathname.ptr());
+                return nullptr;
+            }        
             obj = JS_NewUint8Array(cx, len);
             if (!obj)
                 return nullptr;
diff --git a/js/src/tests/Intl/DateTimeFormat/timeZone_backward_links.js b/js/src/tests/Intl/DateTimeFormat/timeZone_backward_links.js
index 8cda44d87..8bd0512c5 100644
--- a/js/src/tests/Intl/DateTimeFormat/timeZone_backward_links.js
+++ b/js/src/tests/Intl/DateTimeFormat/timeZone_backward_links.js
@@ -1,7 +1,7 @@
 // |reftest| skip-if(!this.hasOwnProperty("Intl"))
 
 // Generated by make_intl_data.py. DO NOT EDIT.
-// tzdata version = 2019a
+// tzdata version = 2019c
 
 const tzMapper = [
     x => x,
diff --git a/js/src/tests/Intl/DateTimeFormat/timeZone_backzone.js b/js/src/tests/Intl/DateTimeFormat/timeZone_backzone.js
index a3efe0310..c760fd85e 100644
--- a/js/src/tests/Intl/DateTimeFormat/timeZone_backzone.js
+++ b/js/src/tests/Intl/DateTimeFormat/timeZone_backzone.js
@@ -1,7 +1,7 @@
 // |reftest| skip-if(!this.hasOwnProperty("Intl"))
 
 // Generated by make_intl_data.py. DO NOT EDIT.
-// tzdata version = 2019a
+// tzdata version = 2019c
 
 const tzMapper = [
     x => x,
diff --git a/js/src/tests/Intl/DateTimeFormat/timeZone_backzone_links.js b/js/src/tests/Intl/DateTimeFormat/timeZone_backzone_links.js
index b61593f78..38db5e77d 100644
--- a/js/src/tests/Intl/DateTimeFormat/timeZone_backzone_links.js
+++ b/js/src/tests/Intl/DateTimeFormat/timeZone_backzone_links.js
@@ -1,7 +1,7 @@
 // |reftest| skip-if(!this.hasOwnProperty("Intl"))
 
 // Generated by make_intl_data.py. DO NOT EDIT.
-// tzdata version = 2019a
+// tzdata version = 2019c
 
 const tzMapper = [
     x => x,
diff --git a/js/src/tests/Intl/DateTimeFormat/timeZone_notbackward_links.js b/js/src/tests/Intl/DateTimeFormat/timeZone_notbackward_links.js
index 12b55c214..64a25c241 100644
--- a/js/src/tests/Intl/DateTimeFormat/timeZone_notbackward_links.js
+++ b/js/src/tests/Intl/DateTimeFormat/timeZone_notbackward_links.js
@@ -1,7 +1,7 @@
 // |reftest| skip-if(!this.hasOwnProperty("Intl"))
 
 // Generated by make_intl_data.py. DO NOT EDIT.
-// tzdata version = 2019a
+// tzdata version = 2019c
 
 const tzMapper = [
     x => x,
diff --git a/js/src/tests/ecma_5/Array/frozen-dense-array.js b/js/src/tests/ecma_5/Array/frozen-dense-array.js
index 9db63036f..cdb86daa3 100644
--- a/js/src/tests/ecma_5/Array/frozen-dense-array.js
+++ b/js/src/tests/ecma_5/Array/frozen-dense-array.js
@@ -38,24 +38,5 @@ assertEq(delete a[0], false);
 
 assertArrayIsExpected();
 
-var watchpointCalled = false;
-// NOTE: Be careful with the position of this test, since this sparsifies the
-// elements and you might not test what you think you're testing otherwise.
-a.watch(2, function(prop, oldValue, newValue) {
-  watchpointCalled = true;
-  assertEq(prop, 2);
-  assertEq(oldValue, 1);
-  assertEq(newValue, "foo");
-});
-
-assertArrayIsExpected();
-
-a.length = 5;
-a[2] = "foo";
-assertEq(watchpointCalled, true);
-assertEq(delete a[0], false);
-
-assertArrayIsExpected();
-
 if (typeof reportCompare === "function")
   reportCompare(true, true);
diff --git a/js/src/tests/ecma_5/extensions/watch-array-length.js b/js/src/tests/ecma_5/extensions/watch-array-length.js
deleted file mode 100644
index e9b356efa..000000000
--- a/js/src/tests/ecma_5/extensions/watch-array-length.js
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Any copyright is dedicated to the Public Domain.
- * http://creativecommons.org/licenses/publicdomain/
- */
-
-var hitCount;
-function watcher(p,o,n) { hitCount++; return n; }
-
-var a = [1];
-a.watch('length', watcher);
-hitCount = 0;
-a.length = 0;
-reportCompare(1, hitCount, "lenient; configurable: watchpoint hit");
-
-var b = Object.defineProperty([1],'0',{configurable:false});
-b.watch('length', watcher);
-hitCount = 0;
-var result;
-try {
-    b.length = 0;    
-    result = "no error";
-} catch (x) {
-    result = x.toString();
-}
-reportCompare(1, hitCount, "lenient; non-configurable: watchpoint hit");
-reportCompare(1, b.length, "lenient; non-configurable: length unchanged");
-reportCompare("no error", result, "lenient; non-configurable: no error thrown");
-
-var c = Object.defineProperty([1],'0',{configurable:false});
-c.watch('length', watcher);
-hitCount = 0;
-var threwTypeError;
-try {
-    (function(){'use strict'; c.length = 0;})();
-    threwTypeError = false;
-} catch (x) {
-    threwTypeError = x instanceof TypeError;
-}
-reportCompare(1, hitCount, "strict; non-configurable: watchpoint hit");
-reportCompare(1, c.length, "strict; non-configurable: length unchanged");
-reportCompare(true, threwTypeError, "strict; non-configurable: TypeError thrown");
diff --git a/js/src/tests/ecma_5/extensions/watch-inherited-property.js b/js/src/tests/ecma_5/extensions/watch-inherited-property.js
deleted file mode 100644
index 1a0ad566b..000000000
--- a/js/src/tests/ecma_5/extensions/watch-inherited-property.js
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Any copyright is dedicated to the Public Domain.
- * http://creativecommons.org/licenses/publicdomain/
- */
-
-/* Create a prototype object with a setter property. */
-var protoSetterCount;
-var proto = ({ set x(v) { protoSetterCount++; } });
-
-/* Put a watchpoint on that setter. */
-var protoWatchCount;
-proto.watch('x', function() { protoWatchCount++; });
-
-/* Make an object with the above as its prototype. */
-function C() { }
-C.prototype = proto;
-var o = new C();
-
-/*
- * Set a watchpoint on the property in the inheriting object. We have
- * defined this to mean "duplicate the property, setter and all, in the
- * inheriting object." I don't think debugging observation mechanisms
- * should mutate the program being run, but that's what we've got.
- */
-var oWatchCount;
-o.watch('x', function() { oWatchCount++; });
-
-/*
- * Assign to the property. This should trip the watchpoint on the inheriting object and
- * the setter.
- */
-protoSetterCount = protoWatchCount = oWatchCount = 0;
-o.x = 1;
-assertEq(protoWatchCount, 0);
-assertEq(oWatchCount, 1);
-assertEq(protoSetterCount, 1);
-
-reportCompare(true, true);
diff --git a/js/src/tests/ecma_5/extensions/watch-replaced-setter.js b/js/src/tests/ecma_5/extensions/watch-replaced-setter.js
deleted file mode 100644
index 05cf60aff..000000000
--- a/js/src/tests/ecma_5/extensions/watch-replaced-setter.js
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Any copyright is dedicated to the Public Domain.
- * http://creativecommons.org/licenses/publicdomain/
- */
-
-/* A stock watcher function. */
-var watcherCount;
-function watcher(id, oldval, newval) { watcherCount++; return newval; }
-
-/* Create an object with a JavaScript setter. */
-var setterCount;
-var o = { w:2, set x(v) { setterCount++; } };
-
-/*
- * Put the object in dictionary mode, so that JSObject::putProperty will 
- * mutate its shapes instead of creating new ones.
- */
-delete o.w;
-
-/*
- * Place a watchpoint on the property. The watchpoint structure holds the
- * original JavaScript setter, and a pointer to the shape.
- */
-o.watch('x', watcher);
-
-/*
- * Replace the accessor property with a value property. The shape's setter
- * should become a non-JS setter, js_watch_set, and the watchpoint
- * structure's saved setter should be updated (in this case, cleared).
- */
-Object.defineProperty(o, 'x', { value:3,
-                                writable:true,
-                                enumerable:true,
-                                configurable:true });
-
-/*
- * Assign to the property. This should trigger js_watch_set, which should
- * call the handler, and then see that there is no JS-level setter to pass
- * control on to, and return.
- */
-watcherCount = setterCount = 0;
-o.x = 3;
-assertEq(watcherCount, 1);
-assertEq(setterCount, 0);
-
-reportCompare(true, true);
diff --git a/js/src/tests/ecma_5/extensions/watch-setter-become-setter.js b/js/src/tests/ecma_5/extensions/watch-setter-become-setter.js
deleted file mode 100644
index f5eff98b8..000000000
--- a/js/src/tests/ecma_5/extensions/watch-setter-become-setter.js
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * Any copyright is dedicated to the Public Domain.
- * http://creativecommons.org/licenses/publicdomain/
- */
-
-/* Create an object with a JavaScript setter. */
-var firstSetterCount;
-var o = { w:2, set x(v) { firstSetterCount++; } };
-
-/*
- * Put the object in dictionary mode, so that JSObject::putProperty will 
- * mutate its shapes instead of creating new ones.
- */
-delete o.w;
-
-/* A stock watcher function. */
-var watcherCount;
-function watcher(id, oldval, newval) { watcherCount++; return newval; }
-
-/*
- * Place a watchpoint on the property. The property's shape now has the
- * watchpoint setter, with the original setter saved in the watchpoint
- * structure.
- */
-o.watch('x', watcher);
-
-/*
- * Replace the setter with a new setter. The shape should get updated to
- * refer to the new setter, and then the watchpoint setter should be
- * re-established.
- */
-var secondSetterCount;
-Object.defineProperty(o, 'x', { set: function () { secondSetterCount++ } });
-
-/*
- * Assign to the property. This should trigger the watchpoint and the new setter.
- */
-watcherCount = firstSetterCount = secondSetterCount = 0;
-o.x = 3;
-assertEq(watcherCount, 1);
-assertEq(firstSetterCount, 0);
-assertEq(secondSetterCount, 1);
-
-reportCompare(true, true);
diff --git a/js/src/tests/ecma_5/extensions/watch-value-prop-becoming-setter.js b/js/src/tests/ecma_5/extensions/watch-value-prop-becoming-setter.js
deleted file mode 100644
index 03cdd788e..000000000
--- a/js/src/tests/ecma_5/extensions/watch-value-prop-becoming-setter.js
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Any copyright is dedicated to the Public Domain.
- * http://creativecommons.org/licenses/publicdomain/
- */
-
-/* A stock watcher function. */
-var watcherCount;
-function watcher(id, old, newval) {
-    watcherCount++;
-    return newval; 
-}
-
-/* Create an object with a value property. */
-var o = { w:2, x:3 };
-
-/*
- * Place a watchpoint on the value property. The watchpoint structure holds
- * the original JavaScript setter, and a pointer to the shape.
- */
-o.watch('x', watcher);
-
-/*
- * Put the object in dictionary mode, so that JSObject::putProperty will 
- * mutate its shapes instead of creating new ones.
- */
-delete o.w;
-
-/*
- * Replace the value property with a setter.
- */
-var setterCount;
-o.__defineSetter__('x', function() { setterCount++; });
-
-/*
- * Trigger the watchpoint. The watchpoint handler should run, and then the
- * setter should run.
- */
-watcherCount = setterCount = 0;
-o.x = 4;
-assertEq(watcherCount, 1);
-assertEq(setterCount, 1);
-
-reportCompare(true, true);
diff --git a/js/src/tests/ecma_5/extensions/watchpoint-deletes-JSPropertyOp-setter.js b/js/src/tests/ecma_5/extensions/watchpoint-deletes-JSPropertyOp-setter.js
deleted file mode 100644
index 85410bbd4..000000000
--- a/js/src/tests/ecma_5/extensions/watchpoint-deletes-JSPropertyOp-setter.js
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Any copyright is dedicated to the Public Domain.
- * http://creativecommons.org/licenses/publicdomain/
- */
-
-function make_watcher(name) {
-    return function (id, oldv, newv) {
-        print("watched " + name + "[0]");
-    };
-}
-
-var o, p;
-function f(flag) {
-    if (flag) {
-        o = arguments;
-    } else {
-        p = arguments;
-        o.watch(0, make_watcher('o'));
-        p.watch(0, make_watcher('p'));
-
-        /*
-         * Previously, the watchpoint implementation actually substituted its magic setter
-         * functions for the setters of shared shapes, and then 1) carefully ignored calls
-         * to its magic setter from unrelated objects, and 2) avoided restoring the
-         * original setter until all watchpoints on that shape had been removed.
-         * 
-         * However, when the watchpoint code began using JSObject::changeProperty and
-         * js_ChangeNativePropertyAttrs to change shapes' setters, the shape tree code
-         * became conscious of the presence of watchpoints, and shared shapes between
-         * objects only when their watchpoint nature coincided. Clearing the magic setter
-         * from one object's shape would not affect other objects, because the
-         * watchpointed and non-watchpointed shapes were distinct if they were shared.
-         * 
-         * Thus, the first unwatch call must go ahead and fix p's shape, even though a
-         * watchpoint exists on the same shape in o. o's watchpoint's presence shouldn't
-         * cause 'unwatch' to leave p's magic setter in place.
-         */
-
-        /* DropWatchPointAndUnlock would see o's watchpoint, and not change p's property. */
-        p.unwatch(0);
-
-        /* DropWatchPointAndUnlock would fix o's property, but not p's; p's setter would be gone. */
-        o.unwatch(0);
-
-        /* This would fail to invoke the arguments object's setter. */
-        p[0] = 4;
-
-        /* And the formal parameter would not get updated. */
-        assertEq(flag, 4);
-    }
-}
-
-f(true);
-f(false);
-
-reportCompare(true, true);
diff --git a/js/src/tests/js1_5/Object/regress-362872-01.js b/js/src/tests/js1_5/Object/regress-362872-01.js
deleted file mode 100644
index 0808ee82b..000000000
--- a/js/src/tests/js1_5/Object/regress-362872-01.js
+++ /dev/null
@@ -1,41 +0,0 @@
-/* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 362872;
-var summary = 'script should not drop watchpoint that is in use';
-var actual = 'No Crash';
-var expect = 'No Crash';
-
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
- 
-  function exploit() {
-    var rooter = {}, object = {}, filler1 = "", filler2 = "\u5555";
-    for(var i = 0; i < 32/2-2; i++) { filler1 += "\u5050"; }
-    object.watch("foo", function(){
-		   object.unwatch("foo");
-		   object.unwatch("foo");
-		   for(var i = 0; i < 8 * 1024; i++) {
-		     rooter[i] = filler1 + filler2;
-		   }
-		 });
-    object.foo = "bar";
-  }
-  exploit();
-
-
-  reportCompare(expect, actual, summary);
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_5/Object/regress-362872-02.js b/js/src/tests/js1_5/Object/regress-362872-02.js
deleted file mode 100644
index edee43a4a..000000000
--- a/js/src/tests/js1_5/Object/regress-362872-02.js
+++ /dev/null
@@ -1,24 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/*
- * Any copyright is dedicated to the Public Domain.
- * http://creativecommons.org/licenses/publicdomain/
- * Contributor: Blake Kaplan
- */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 362872;
-var summary = 'script should not drop watchpoint that is in use';
-var actual = 'No Crash';
-var expect = 'No Crash';
-
-printBugNumber(BUGNUMBER);
-printStatus (summary);
- 
-this.watch('x', function f() {
-             print("before");
-             x = 3;
-             print("after");
-           });
-x = 3;
-
-reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_5/Regress/regress-127243.js b/js/src/tests/js1_5/Regress/regress-127243.js
deleted file mode 100644
index 11779f803..000000000
--- a/js/src/tests/js1_5/Regress/regress-127243.js
+++ /dev/null
@@ -1,75 +0,0 @@
-// |reftest| skip-if(xulRuntime.OS=="WINNT"&&isDebugBuild) slow
-/* -*- Mode: C++; 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 127243;
-var summary = 'Do not crash on watch';
-var actual = 'No Crash';
-var expect = 'No Crash';
-
-printBugNumber(BUGNUMBER);
-printStatus (summary);
-
-if (typeof window != 'undefined' && typeof document != 'undefined') 
-{
-  // delay test driver end
-  gDelayTestDriverEnd = true;
-  window.addEventListener('load', handleLoad, false);
-}
-else
-{
-  printStatus('This test must be run in the browser');
-  reportCompare(expect, actual, summary);
-
-}
-
-var div;
-
-function handleLoad()
-{
-  div = document.createElement('div');
-  document.body.appendChild(div);
-  div.setAttribute('id', 'id1');
-  div.style.width = '50px';
-  div.style.height = '100px';
-  div.style.overflow = 'auto';
-
-  for (var i = 0; i < 5; i++)
-  {
-    var p = document.createElement('p');
-    var t = document.createTextNode('blah');
-    p.appendChild(t);
-    div.appendChild(p);
-  }
-
-  div.watch('scrollTop', wee);
-
-  setTimeout('setScrollTop()', 1000);
-}
-
-function wee(id, oldval, newval)
-{
-  var t = document.createTextNode('setting ' + id +
-                                  ' value ' + div.scrollTop +
-                                  ' oldval ' + oldval +
-                                  ' newval ' + newval);
-  var p = document.createElement('p');
-  p.appendChild(t);
-  document.body.appendChild(p);
-
-  return newval;
-}
-
-function setScrollTop()
-{
-  div.scrollTop = 42;
-
-  reportCompare(expect, actual, summary);
-
-  gDelayTestDriverEnd = false;
-  jsTestDriverEnd();
-
-}
diff --git a/js/src/tests/js1_5/Regress/regress-213482.js b/js/src/tests/js1_5/Regress/regress-213482.js
deleted file mode 100644
index 26ed7e894..000000000
--- a/js/src/tests/js1_5/Regress/regress-213482.js
+++ /dev/null
@@ -1,29 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 213482;
-var summary = 'Do not crash watching property when watcher sets property';
-var actual = 'No Crash';
-var expect = 'No Crash';
-
-printBugNumber(BUGNUMBER);
-printStatus (summary);
- 
-var testobj = {value: 'foo'};
-
-function watched (a, b, c) {
-  testobj.value = (new Date()).getTime();
-}
-
-function setTest() {
-  testobj.value = 'b';
-}
-
-testobj.watch("value", watched);
-
-setTest();
-
-reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_5/Regress/regress-240577.js b/js/src/tests/js1_5/Regress/regress-240577.js
deleted file mode 100644
index ba8330aa0..000000000
--- a/js/src/tests/js1_5/Regress/regress-240577.js
+++ /dev/null
@@ -1,37 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/*
- * Any copyright is dedicated to the Public Domain.
- * http://creativecommons.org/licenses/publicdomain/
- * Contributor: Bob Clary
- */
-
-//-----------------------------------------------------------------------------
-// originally reported by Jens Thiele <karme@unforgettable.com> in
-var BUGNUMBER = 240577;
-var summary = 'object.watch execution context';
-var actual = '';
-var expect = '';
-
-printBugNumber(BUGNUMBER);
-printStatus (summary);
-
-var createWatcher = function ( watchlabel )
-{
-  var watcher = function (property, oldvalue, newvalue)
-  {
-    actual += watchlabel; return newvalue;
-  };
-  return watcher;
-};
-
-var watcher1 = createWatcher('watcher1');
-
-var object = {property: 'value'};
-
-object.watch('property', watcher1);
-
-object.property = 'newvalue';
-
-expect = 'watcher1';
-
-reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_5/Regress/regress-355341.js b/js/src/tests/js1_5/Regress/regress-355341.js
deleted file mode 100644
index ab2a4b884..000000000
--- a/js/src/tests/js1_5/Regress/regress-355341.js
+++ /dev/null
@@ -1,29 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 355341;
-var summary = 'Do not crash with watch and setter';
-var actual = '';
-var expect = '';
-
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
- 
-  Object.defineProperty(this, "x", { set: Function, enumerable: true, configurable: true });
-  this.watch('x', function () { }); x = 3;
-
-  reportCompare(expect, actual, summary);
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_5/Regress/regress-355344.js b/js/src/tests/js1_5/Regress/regress-355344.js
deleted file mode 100644
index 00bd39147..000000000
--- a/js/src/tests/js1_5/Regress/regress-355344.js
+++ /dev/null
@@ -1,49 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 355344;
-var summary = 'Exceptions thrown by watch point';
-var actual = '';
-var expect = '';
-
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
-
-  var o = {};
-
-  expect = 'setter: yikes';
-
-  o.watch('x', function(){throw 'yikes'});
-  try
-  {
-    o.x = 3;
-  }
-  catch(ex)
-  {
-    actual = "setter: " + ex;
-  }
-
-  try
-  {
-    eval("") ;
-  }
-  catch(e)
-  {
-    actual = "eval: " + e;
-  }
-
-  reportCompare(expect, actual, summary);
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_5/Regress/regress-361467.js b/js/src/tests/js1_5/Regress/regress-361467.js
deleted file mode 100644
index 371c0a8b5..000000000
--- a/js/src/tests/js1_5/Regress/regress-361467.js
+++ /dev/null
@@ -1,32 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 361467;
-var summary = 'Do not crash with certain watchers';
-var actual = '';
-var expect = '';
-
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
- 
-  expect = actual = 'No Crash';
-
-  var x;
-  this.watch('x', print);
-  x = 5;
-
-  reportCompare(expect, actual, summary);
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_5/Regress/regress-361617.js b/js/src/tests/js1_5/Regress/regress-361617.js
deleted file mode 100644
index 5d20fd78f..000000000
--- a/js/src/tests/js1_5/Regress/regress-361617.js
+++ /dev/null
@@ -1,35 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 361617;
-var summary = 'Do not crash with getter, watch and gc';
-var actual = 'No Crash';
-var expect = 'No Crash';
-
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
- 
-  (function() {
-    Object.defineProperty(this, "x", { get: function(){}, enumerable: true, configurable: true });
-  })();
-  this.watch('x', print);
-  Object.defineProperty(this, "x", { get: function(){}, enumerable: true, configurable: true });
-  gc();
-  this.unwatch('x');
-  x;
-
-  reportCompare(expect, actual, summary);
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_5/Regress/regress-385393-06.js b/js/src/tests/js1_5/Regress/regress-385393-06.js
deleted file mode 100644
index 327103f39..000000000
--- a/js/src/tests/js1_5/Regress/regress-385393-06.js
+++ /dev/null
@@ -1,28 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 385393;
-var summary = 'Regression test for bug 385393';
-var actual = 'No Crash';
-var expect = 'No Crash';
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
- 
-  reportCompare(expect, actual, summary);
-
-  true.watch("x", function(){});
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_5/Regress/regress-506567.js b/js/src/tests/js1_5/Regress/regress-506567.js
deleted file mode 100644
index e78dfe1db..000000000
--- a/js/src/tests/js1_5/Regress/regress-506567.js
+++ /dev/null
@@ -1,45 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 506567;
-var summary = 'Do not crash with watched variables';
-var actual = '';
-var expect = '';
-
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
-
-  if (typeof clearInterval == 'undefined')
-  {
-    clearInterval = (function () {});
-  }
-
-  var obj = new Object();
-  obj.test = null;
-  obj.watch("test", (function(prop, oldval, newval)
-    {
-      if(false)
-      {
-        var test = newval % oldval;
-        var func = (function(){clearInterval(myInterval);});
-      }
-    }));
-
-  obj.test = 'null';
-  print(obj.test);
-
-  reportCompare(expect, actual, summary);
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_5/extensions/regress-303277.js b/js/src/tests/js1_5/extensions/regress-303277.js
deleted file mode 100644
index 319d9a2ed..000000000
--- a/js/src/tests/js1_5/extensions/regress-303277.js
+++ /dev/null
@@ -1,19 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 303277;
-var summary = 'Do not crash with crash with a watchpoint for __proto__ property ';
-var actual = 'No Crash';
-var expect = 'No Crash';
-
-printBugNumber(BUGNUMBER);
-printStatus (summary);
-
-var o = {};
-o.watch("__proto__", function(){return null;});
-o.__proto__ = null;
- 
-reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_5/extensions/regress-355339.js b/js/src/tests/js1_5/extensions/regress-355339.js
deleted file mode 100644
index 9b15bd742..000000000
--- a/js/src/tests/js1_5/extensions/regress-355339.js
+++ /dev/null
@@ -1,32 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 355339;
-var summary = 'Do not assert: sprop->setter != js_watch_set';
-var actual = '';
-var expect = '';
-
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
- 
-  expect = actual = 'No Crash';
-  o = {};
-  o.watch("j", function(a,b,c) { print("*",a,b,c) });
-  o.unwatch("j");
-  o.watch("j", function(a,b,c) { print("*",a,b,c) });
-
-  reportCompare(expect, actual, summary);
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_5/extensions/regress-361346.js b/js/src/tests/js1_5/extensions/regress-361346.js
deleted file mode 100644
index 297c3b1f2..000000000
--- a/js/src/tests/js1_5/extensions/regress-361346.js
+++ /dev/null
@@ -1,22 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 361346;
-var summary = 'Crash with setter, watch, GC';
-var actual = '';
-var expect = '';
-
-printBugNumber(BUGNUMBER);
-printStatus (summary);
- 
-expect = actual = 'No Crash';
-
-Object.defineProperty(this, "x", { set: new Function, enumerable: true, configurable: true });
-this.watch('x', function(){});
-gc();
-x = {};
-
-reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_5/extensions/regress-361360.js b/js/src/tests/js1_5/extensions/regress-361360.js
deleted file mode 100644
index 98e6575d9..000000000
--- a/js/src/tests/js1_5/extensions/regress-361360.js
+++ /dev/null
@@ -1,32 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 361360;
-var summary = 'Do not assert: !caller || caller->pc involving setter and watch';
-var actual = '';
-var expect = '';
-
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
- 
-  expect = actual = 'No Crash';
-
-  this.__defineSetter__('x', eval);
-  this.watch('x', function(){});
-  x = 3;
-
-  reportCompare(expect, actual, summary);
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_5/extensions/regress-361552.js b/js/src/tests/js1_5/extensions/regress-361552.js
deleted file mode 100644
index eed54e6dd..000000000
--- a/js/src/tests/js1_5/extensions/regress-361552.js
+++ /dev/null
@@ -1,27 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 361552;
-var summary = 'Crash with setter, watch, Script';
-var actual = '';
-var expect = '';
-
-printBugNumber(BUGNUMBER);
-printStatus (summary);
- 
-expect = actual = 'No Crash';
-
-if (typeof Script == 'undefined')
-{
-  print('Test skipped. Script not defined.');
-}
-else
-{
-  this.__defineSetter__('x', gc);
-  this.watch('x', new Script(''));
-  x = 3;
-}
-reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_5/extensions/regress-361558.js b/js/src/tests/js1_5/extensions/regress-361558.js
deleted file mode 100644
index a9a3ae725..000000000
--- a/js/src/tests/js1_5/extensions/regress-361558.js
+++ /dev/null
@@ -1,19 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 361558;
-var summary = 'Do not assert: sprop->setter != js_watch_set';
-var actual = '';
-var expect = '';
-
-printBugNumber(BUGNUMBER);
-printStatus (summary);
- 
-expect = actual = 'No Crash';
-
-({}.__proto__.watch('x', print)); ({}.watch('x', print));
-
-reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_5/extensions/regress-361571.js b/js/src/tests/js1_5/extensions/regress-361571.js
deleted file mode 100644
index bf89d794b..000000000
--- a/js/src/tests/js1_5/extensions/regress-361571.js
+++ /dev/null
@@ -1,38 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 361571;
-var summary = 'Do not assert: fp->scopeChain == parent';
-var actual = 'No Crash';
-var expect = 'No Crash';
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
-
-  try
-  {
-    o = {};
-    o.__defineSetter__('y', eval);
-    o.watch('y', function () { return "";});
-    o.y = 1;
-  }
-  catch(ex)
-  {
-    printStatus('Note eval can no longer be called directly');
-    expect = 'EvalError: function eval must be called directly, and not by way of a function of another name';
-    actual = ex + '';
-  }
-  reportCompare(expect, actual, summary);
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_5/extensions/regress-361856.js b/js/src/tests/js1_5/extensions/regress-361856.js
deleted file mode 100644
index e7e2f675b..000000000
--- a/js/src/tests/js1_5/extensions/regress-361856.js
+++ /dev/null
@@ -1,35 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 361856;
-var summary = 'Do not assert: overwriting @ js_AddScopeProperty';
-var actual = '';
-var expect = '';
-
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
-
-  function testit() {
-    var obj = {};
-    obj.watch("foo", function(){});
-    delete obj.foo;
-    obj = null;
-    gc();
-  }
-  testit();
-
-  reportCompare(expect, actual, summary);
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_5/extensions/regress-361964.js b/js/src/tests/js1_5/extensions/regress-361964.js
deleted file mode 100644
index fcb8bba01..000000000
--- a/js/src/tests/js1_5/extensions/regress-361964.js
+++ /dev/null
@@ -1,54 +0,0 @@
-// |reftest| skip -- slow, alert not dismissed, now busted by harness
-/* -*- Mode: C++; 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 361964;
-var summary = 'Crash [@ MarkGCThingChildren] involving watch and setter';
-var actual = 'No Crash';
-var expect = 'No Crash';
-
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
-
-  var doc;
-  if (typeof document == 'undefined')
-  {
-    doc = {};
-  }
-  else
-  {
-    doc = document;
-  }
-
-  if (typeof alert == 'undefined')
-  {
-    alert = print;
-  }
-
-// Crash:
-  doc.watch("title", function(a,b,c,d) {
-		   return { toString : function() { alert(1); } };
-		 });
-  doc.title = "xxx";
-
-// No crash:
-  doc.watch("title", function() {
-		   return { toString : function() { alert(1); } };
-		 });
-  doc.title = "xxx";
-
-  reportCompare(expect, actual, summary);
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_5/extensions/regress-385134.js b/js/src/tests/js1_5/extensions/regress-385134.js
deleted file mode 100644
index 041f4d6e7..000000000
--- a/js/src/tests/js1_5/extensions/regress-385134.js
+++ /dev/null
@@ -1,38 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 385134;
-var summary = 'Do not crash with setter, watch, uneval';
-var actual = 'No Crash';
-var expect = 'No Crash';
-
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
- 
-  if (typeof this.__defineSetter__ != 'undefined' && 
-      typeof this.watch != 'undefined' &&
-      typeof uneval != 'undefined')
-  {
-    try {
-      this.__defineSetter__(0, function(){});
-    } catch (exc) {
-      // In the browser, this fails. Ignore the error.
-    }
-    this.watch(0, function(){});
-    uneval(this);
-  }
-  reportCompare(expect, actual, summary);
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_5/extensions/regress-385393-09.js b/js/src/tests/js1_5/extensions/regress-385393-09.js
deleted file mode 100644
index 42834824a..000000000
--- a/js/src/tests/js1_5/extensions/regress-385393-09.js
+++ /dev/null
@@ -1,18 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 385393;
-var summary = 'Regression test for bug 385393';
-var actual = 'No Crash';
-var expect = 'No Crash';
-
-printBugNumber(BUGNUMBER);
-printStatus (summary);
- 
-eval("this.__defineSetter__('x', gc); this.watch('x', [].slice); x = 1;");
-
-reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_5/extensions/regress-390597.js b/js/src/tests/js1_5/extensions/regress-390597.js
deleted file mode 100644
index 9f8596adc..000000000
--- a/js/src/tests/js1_5/extensions/regress-390597.js
+++ /dev/null
@@ -1,42 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 390597;
-var summary = 'watch point + eval-as-setter allows access to dead JSStackFrame';
-var actual = 'No Crash';
-var expect = 'No Crash';
-
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
- 
-  function exploit() {
-    try
-    {
-    var obj = this, args = null;
-    obj.__defineSetter__("evil", eval);
-    obj.watch("evil", function() { return "args = arguments;"; });
-    obj.evil = null;
-    eval("print(args[0]);");
-    }
-    catch(ex)
-    {
-      print('Caught ' + ex);
-    }
-  }
-  exploit();
-
-  reportCompare(expect, actual, summary);
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_5/extensions/regress-420612.js b/js/src/tests/js1_5/extensions/regress-420612.js
deleted file mode 100644
index a4491095e..000000000
--- a/js/src/tests/js1_5/extensions/regress-420612.js
+++ /dev/null
@@ -1,21 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 420612;
-var summary = 'Do not assert: obj == pobj';
-var actual = 'No Crash';
-var expect = 'No Crash';
-
-printBugNumber(BUGNUMBER);
-printStatus (summary);
-
-var obj = Object.create([]);
-obj.unwatch("x");
-
-if (typeof reportCompare === "function")
-  reportCompare(true, true);
-
-print("Tests complete");
diff --git a/js/src/tests/js1_5/extensions/regress-435345-01.js b/js/src/tests/js1_5/extensions/regress-435345-01.js
deleted file mode 100644
index 28beab473..000000000
--- a/js/src/tests/js1_5/extensions/regress-435345-01.js
+++ /dev/null
@@ -1,100 +0,0 @@
-// |reftest| fails
-/* -*- Mode: C++; 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 435345;
-var summary = 'Watch the length property of arrays';
-var actual = '';
-var expect = '';
-
-// see http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Objects:Object:watch
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
-  
-  var arr;
- 
-  try
-  {
-    expect = 'watcher: propname=length, oldval=0, newval=1; ';
-    actual = '';
-    arr = [];
-    arr.watch('length', watcher);
-    arr[0] = '0';
-  }
-  catch(ex)
-  {
-    actual = ex + '';
-  }
-  reportCompare(expect, actual, summary + ': 1');
-
-  try
-  {
-    expect = 'watcher: propname=length, oldval=1, newval=2; ' + 
-      'watcher: propname=length, oldval=2, newval=2; ';
-    actual = '';
-    arr.push(5);
-  }
-  catch(ex)
-  {
-    actual = ex + '';
-  }
-  reportCompare(expect, actual, summary + ': 2');
-
-  try
-  {
-    expect = 'watcher: propname=length, oldval=2, newval=1; ';
-    actual = '';
-    arr.pop();
-  }
-  catch(ex)
-  {
-    actual = ex + '';
-  }
-  reportCompare(expect, actual, summary + ': 3');
-
-  try
-  {
-    expect = 'watcher: propname=length, oldval=1, newval=2; ';
-    actual = '';
-    arr.length++;
-  }
-  catch(ex)
-  {
-    actual = ex + '';
-  }
-  reportCompare(expect, actual, summary + ': 4');
-
-  try
-  {
-    expect = 'watcher: propname=length, oldval=2, newval=5; ';
-    actual = '';
-    arr.length = 5;
-  }
-  catch(ex)
-  {
-    actual = ex + '';
-  }
-  reportCompare(expect, actual, summary + ': 5');
-
-  exitFunc ('test');
-}
-
-function watcher(propname, oldval, newval)
-{
-  actual += 'watcher: propname=' + propname + ', oldval=' + oldval + 
-    ', newval=' + newval + '; ';
-
-  return newval;
-}
-
diff --git a/js/src/tests/js1_5/extensions/regress-454040.js b/js/src/tests/js1_5/extensions/regress-454040.js
deleted file mode 100644
index 63b5e1488..000000000
--- a/js/src/tests/js1_5/extensions/regress-454040.js
+++ /dev/null
@@ -1,25 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 454040;
-var summary = 'Do not crash @ js_ComputeFilename';
-var actual = '';
-var expect = '';
-
-printBugNumber(BUGNUMBER);
-printStatus (summary);
-
-try
-{ 
-  this.__defineGetter__("x", Function);
-  this.__defineSetter__("x", Function);
-  this.watch("x", x.__proto__);
-  x = 1;
-}
-catch(ex)
-{
-}
-reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_5/extensions/regress-454142.js b/js/src/tests/js1_5/extensions/regress-454142.js
deleted file mode 100644
index 05f331278..000000000
--- a/js/src/tests/js1_5/extensions/regress-454142.js
+++ /dev/null
@@ -1,30 +0,0 @@
-// |reftest| skip-if(Android)
-/* -*- Mode: C++; 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 454142;
-var summary = 'Do not crash with gczeal, setter, watch';
-var actual = '';
-var expect = '';
-
-printBugNumber(BUGNUMBER);
-printStatus (summary);
- 
-this.watch("x", function(){});
-delete x;
-if (typeof gczeal == 'function')
-{
-  gczeal(2);
-}
-
-this.__defineSetter__("x", function(){});
-
-if (typeof gczeal == 'function')
-{
-  gczeal(0);
-}
-
-reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_5/extensions/regress-455413.js b/js/src/tests/js1_5/extensions/regress-455413.js
deleted file mode 100644
index d00ab135b..000000000
--- a/js/src/tests/js1_5/extensions/regress-455413.js
+++ /dev/null
@@ -1,24 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 455413;
-var summary = 'Do not assert with JIT: (m != JSVAL_INT) || isInt32(*vp)';
-var actual = 'No Crash';
-var expect = 'No Crash';
-
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-printBugNumber(BUGNUMBER);
-printStatus (summary);
- 
-
-this.watch('x', Math.pow); (function() { for(var j=0;j<4;++j){x=1;} })();
-
-
-reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_5/extensions/regress-465145.js b/js/src/tests/js1_5/extensions/regress-465145.js
deleted file mode 100644
index 84f81703b..000000000
--- a/js/src/tests/js1_5/extensions/regress-465145.js
+++ /dev/null
@@ -1,24 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 465145;
-var summary = 'Do not crash with watched defined setter';
-var actual = '';
-var expect = '';
-
-printBugNumber(BUGNUMBER);
-printStatus (summary);
- 
-
-this.__defineSetter__("x", function(){});
-this.watch("x", function(){});
-y = this;
-for (var z = 0; z < 2; ++z) { x = y };
-this.__defineSetter__("x", function(){});
-for (var z = 0; z < 2; ++z) { x = y };
-
-
-reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_5/extensions/regress-472787.js b/js/src/tests/js1_5/extensions/regress-472787.js
deleted file mode 100755
index d3196f05f..000000000
--- a/js/src/tests/js1_5/extensions/regress-472787.js
+++ /dev/null
@@ -1,31 +0,0 @@
-// |reftest| skip-if(Android)
-/* -*- Mode: C++; 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 472787;
-var summary = 'Do not hang with gczeal, watch and concat';
-var actual = '';
-var expect = '';
-
-printBugNumber(BUGNUMBER);
-printStatus (summary);
-
-this.__defineSetter__("x", Math.sin);
-this.watch("x", '' .concat);
-
-if (typeof gczeal == 'function')
-{
-  gczeal(2);
-}
-
-x = 1;
-
-if (typeof gczeal == 'function')
-{
-  gczeal(0);
-}
-
-reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_5/extensions/regress-488995.js b/js/src/tests/js1_5/extensions/regress-488995.js
deleted file mode 100644
index f7abbe439..000000000
--- a/js/src/tests/js1_5/extensions/regress-488995.js
+++ /dev/null
@@ -1,46 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 488995;
-var summary = 'Do not crash with watch, __defineSetter__ on svg';
-var actual = '';
-var expect = '';
-
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
-
-  if (typeof document == 'undefined')
-  {
-    print('Test skipped: requires browser.');
-  }
-  else
-  {
-    try
-    {
-      var o=document.createElementNS("http://www.w3.org/2000/svg", "svg");
-      var p=o.y;
-      p.watch('animVal', function(id, oldvar, newval) {} );
-      p.type='xxx';
-      p.__defineSetter__('animVal', function() {});
-      p.animVal=0;
-    }
-    catch(ex)
-    {
-    }
-  }
-
-  reportCompare(expect, actual, summary);
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_6/Regress/regress-476655.js b/js/src/tests/js1_6/Regress/regress-476655.js
deleted file mode 100644
index 9077ba3a0..000000000
--- a/js/src/tests/js1_6/Regress/regress-476655.js
+++ /dev/null
@@ -1,40 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 476655;
-var summary = 'TM: Do not assert: count <= (size_t) (fp->regs->sp - StackBase(fp) - depth)';
-var actual = '';
-var expect = '';
-
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
-
-
-  try
-  {
-    eval(
-      "(function (){ for (var y in this) {} })();" +
-      "[''.watch(\"\", function(){}) for each (x in ['', '', eval, '', '']) if " +
-      "(x)].map(Function)"
-      );
-  }
-  catch(ex)
-  {
-  }
-
-
-  reportCompare(expect, actual, summary);
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_6/extensions/regress-457521.js b/js/src/tests/js1_6/extensions/regress-457521.js
deleted file mode 100644
index 6f4fbda50..000000000
--- a/js/src/tests/js1_6/extensions/regress-457521.js
+++ /dev/null
@@ -1,24 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 457521;
-var summary = 'Do not crash @ js_DecompileValueGenerator';
-var actual = '';
-var expect = '';
-
-printBugNumber(BUGNUMBER);
-printStatus (summary);
-
-try
-{
-  this.__defineSetter__("x", [,,,].map);
-  this.watch("x", (new Function("var y, eval")));
-  x = true;
-}
-catch(ex)
-{
-}
-reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_6/extensions/regress-479567.js b/js/src/tests/js1_6/extensions/regress-479567.js
deleted file mode 100644
index 6f3525130..000000000
--- a/js/src/tests/js1_6/extensions/regress-479567.js
+++ /dev/null
@@ -1,33 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 479567;
-var summary = 'Do not assert: thing';
-var actual = '';
-var expect = '';
-
-printBugNumber(BUGNUMBER);
-printStatus (summary);
-
-
-function f()
-{
-  (eval("(function(){for each (y in [false, false, false]);});"))();
-}
-
-try
-{
-  this.__defineGetter__("x", gc);
-  uneval(this.watch("y", this.toSource))
-    f();
-  throw x;
-}
-catch(ex)
-{
-}
-
-
-reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_7/extensions/regress-453955.js b/js/src/tests/js1_7/extensions/regress-453955.js
deleted file mode 100644
index 454f712f3..000000000
--- a/js/src/tests/js1_7/extensions/regress-453955.js
+++ /dev/null
@@ -1,31 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 453955;
-var summary = 'Do not assert: sprop->setter != js_watch_set || pobj != obj';
-var actual = '';
-var expect = '';
-
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
- 
-  for (var z = 0; z < 2; ++z) 
-  { 
-    [].filter.watch("9", function(y) { yield y; });
-  }
-
-  reportCompare(expect, actual, summary);
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_7/extensions/regress-473282.js b/js/src/tests/js1_7/extensions/regress-473282.js
deleted file mode 100644
index c50ac9234..000000000
--- a/js/src/tests/js1_7/extensions/regress-473282.js
+++ /dev/null
@@ -1,20 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 473282;
-var summary = 'Do not assert: thing';
-var actual = '';
-var expect = '';
-
-printBugNumber(BUGNUMBER);
-printStatus (summary);
- 
-this.watch("b", "".substring);
-this.__defineGetter__("a", gc);
-for each (b in [this, null, null]);
-a;
-
-reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_7/regress/regress-385133-01.js b/js/src/tests/js1_7/regress/regress-385133-01.js
deleted file mode 100644
index 03b09f535..000000000
--- a/js/src/tests/js1_7/regress/regress-385133-01.js
+++ /dev/null
@@ -1,37 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 385133;
-var summary = 'Do not crash due to recursion with watch, setter, delete, generator';
-var actual = 'No Crash';
-var expect = 'No Crash';
-
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
-
-  try
-  { 
-    Object.defineProperty(this, "x", { set: {}.watch, enumerable: true, configurable: true });
-    this.watch('x', 'foo'.split);
-    delete x;
-    function g(){ x = 1; yield; }
-    for (i in g()) { }
-  }
-  catch(ex)
-  {
-  }
-  reportCompare(expect, actual, summary);
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_8/extensions/regress-394709.js b/js/src/tests/js1_8/extensions/regress-394709.js
deleted file mode 100644
index d04d8832f..000000000
--- a/js/src/tests/js1_8/extensions/regress-394709.js
+++ /dev/null
@@ -1,51 +0,0 @@
-// |reftest| skip-if(!xulRuntime.shell)
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 394709;
-var summary = 'Do not leak with object.watch and closure';
-var actual = 'No Leak';
-var expect = 'No Leak';
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
-
-  assertEq(finalizeCount(), 0, "invalid initial state");
-
-  runtest();
-  gc();
-  assertEq(finalizeCount(), 1, "leaked");
-
-  runtest();
-  gc();
-  assertEq(finalizeCount(), 2, "leaked");
-
-  runtest();
-  gc();
-  assertEq(finalizeCount(), 3, "leaked");
-
-
-  function runtest () {
-    var obj = { b: makeFinalizeObserver() };
-    obj.watch('b', watcher);
-
-    function watcher(id, old, value) {
-      ++obj.n;
-      return value;
-    }
-  }
-
-  reportCompare(expect, actual, summary);
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_8/extensions/regress-481989.js b/js/src/tests/js1_8/extensions/regress-481989.js
deleted file mode 100644
index 36efb7567..000000000
--- a/js/src/tests/js1_8/extensions/regress-481989.js
+++ /dev/null
@@ -1,19 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 481989;
-var summary = 'TM: Do not assert: SPROP_HAS_STUB_SETTER(sprop)';
-var actual = '';
-var expect = '';
-
-printBugNumber(BUGNUMBER);
-printStatus (summary);
-
-
-y = this.watch("x", function(){}); for each (let y in ['', '']) x = y;
-
-
-reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_8_1/extensions/regress-452498-193.js b/js/src/tests/js1_8_1/extensions/regress-452498-193.js
deleted file mode 100644
index 1397bf4bb..000000000
--- a/js/src/tests/js1_8_1/extensions/regress-452498-193.js
+++ /dev/null
@@ -1,34 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 452498;
-var summary = 'TM: upvar2 regression tests';
-var actual = '';
-var expect = '';
-
-//-------  Comment #193  From  Gary Kwong
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
-
-// Assertion failure: afunbox->parent, at ../jsparse.cpp:1912
-
-  this.x = undefined;
-  this.watch("x", Function);
-  NaN = uneval({ get \u3056 (){ return undefined } });
-  x+=NaN;
-
-  reportCompare(expect, actual, summary);
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_8_1/extensions/regress-452498-196.js b/js/src/tests/js1_8_1/extensions/regress-452498-196.js
index 69d5a3586..5b9191199 100644
--- a/js/src/tests/js1_8_1/extensions/regress-452498-196.js
+++ b/js/src/tests/js1_8_1/extensions/regress-452498-196.js
@@ -21,15 +21,6 @@ function test()
   printBugNumber(BUGNUMBER);
   printStatus (summary);
 
-// Assertion failure: localKind == JSLOCAL_VAR || localKind == JSLOCAL_CONST, at ../jsfun.cpp:916
-
-  this.x = undefined;
-  this.watch("x", Function);
-  NaN = uneval({ get \u3056 (){ return undefined } });
-  x+=NaN;
-
-  reportCompare(expect, actual, summary + ': 1');
-
 // Assertion failure: lexdep->isLet(), at ../jsparse.cpp:1900
 
   (function (){
diff --git a/js/src/tests/js1_8_1/extensions/regress-520572.js b/js/src/tests/js1_8_1/extensions/regress-520572.js
deleted file mode 100644
index 97f00029a..000000000
--- a/js/src/tests/js1_8_1/extensions/regress-520572.js
+++ /dev/null
@@ -1,41 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 4 -*- */
-/*
- * Any copyright is dedicated to the Public Domain.
- * http://creativecommons.org/licenses/publicdomain/
- * Contributor: Blake Kaplan
- */
-
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 520572;
-var summary = 'watch should innerize the object being watched';
-var actual = 0;
-var expect = 2;
-
-
-//-----------------------------------------------------------------------------
-test();
-//-----------------------------------------------------------------------------
-
-function test()
-{
-  enterFunc ('test');
-  printBugNumber(BUGNUMBER);
-  printStatus (summary);
-
-  if ("evalcx" in this) {
-      // shell
-      let s = evalcx("lazy");
-      s.n = 0;
-      evalcx('this.watch("x", function(){ n++; }); this.x = 4; x = 6', s);
-      actual = s.n;
-      reportCompare(expect, actual, summary);
-  } else {
-      // browser
-      this.watch('x', function(){ actual++; });
-      this.x = 4;
-      x = 6;
-      reportCompare(expect, actual, summary);
-  }
-
-  exitFunc ('test');
-}
diff --git a/js/src/tests/js1_8_1/regress/regress-452498-160.js b/js/src/tests/js1_8_1/regress/regress-452498-160.js
index 6498a0b5a..305b41795 100644
--- a/js/src/tests/js1_8_1/regress/regress-452498-160.js
+++ b/js/src/tests/js1_8_1/regress/regress-452498-160.js
@@ -21,11 +21,6 @@ function test()
   printBugNumber(BUGNUMBER);
   printStatus (summary);
 
-// crash [@ js_Interpret]
-  (eval("(function(){ this.watch(\"x\", function () { new function ()y } ); const y = undefined });"))();
-  x = NaN;
-  reportCompare(expect, actual, summary + ': 2');
-
 // Assertion failure: JOF_OPTYPE(op) == JOF_ATOM, at ../jsemit.cpp:5916
   ({ set z(v){},  set y(v)--x, set w(v)--w });
   reportCompare(expect, actual, summary + ': 3');
diff --git a/js/src/tests/js1_8_5/extensions/regress-604781-1.js b/js/src/tests/js1_8_5/extensions/regress-604781-1.js
deleted file mode 100644
index a7c43f95d..000000000
--- a/js/src/tests/js1_8_5/extensions/regress-604781-1.js
+++ /dev/null
@@ -1,24 +0,0 @@
-// Any copyright is dedicated to the Public Domain.
-// http://creativecommons.org/licenses/publicdomain/
-
-var watcherCount, setterCount;
-function watcher(id, oldval, newval) { watcherCount++; return newval; }
-function setter(newval) { setterCount++; }
-
-var p = { set x(v) { setter(v); } };
-p.watch('x', watcher);
-
-watcherCount = setterCount = 0;
-p.x = 2;
-assertEq(setterCount, 1);
-assertEq(watcherCount, 1);
-
-var o = Object.defineProperty({}, 'x', { set:setter, enumerable:true, configurable:true });
-o.watch('x', watcher);
-
-watcherCount = setterCount = 0;
-o.x = 2;
-assertEq(setterCount, 1);
-assertEq(watcherCount, 1);
-
-reportCompare(0, 0, 'ok');
diff --git a/js/src/tests/js1_8_5/extensions/regress-604781-2.js b/js/src/tests/js1_8_5/extensions/regress-604781-2.js
deleted file mode 100644
index 7aba4a274..000000000
--- a/js/src/tests/js1_8_5/extensions/regress-604781-2.js
+++ /dev/null
@@ -1,13 +0,0 @@
-// Any copyright is dedicated to the Public Domain.
-// http://creativecommons.org/licenses/publicdomain/
-
-var log;
-function watcher(id, old, newval) { log += 'watcher'; return newval; }
-var o = { set x(v) { log += 'setter'; } };
-o.watch('x', watcher);
-Object.defineProperty(o, 'x', {value: 3, writable: true});
-log = '';
-o.x = 3;
-assertEq(log, 'watcher');
-
-reportCompare(0, 0, 'ok');
diff --git a/js/src/tests/js1_8_5/extensions/regress-627984-1.js b/js/src/tests/js1_8_5/extensions/regress-627984-1.js
deleted file mode 100644
index a3726630a..000000000
--- a/js/src/tests/js1_8_5/extensions/regress-627984-1.js
+++ /dev/null
@@ -1,16 +0,0 @@
-// Any copyright is dedicated to the Public Domain.
-// http://creativecommons.org/licenses/publicdomain/
-
-// See bug 627984, comment 17, item 1.
-var obj;
-var methods = [];
-for (var i = 0; i < 2; i++) {
-    obj = {m: function () { return this.x; }};
-    obj.watch("m", function (id, oldval, newval) { methods[i] = oldval; });
-    obj.m = 0;
-}
-assertEq(typeof methods[0], "function");
-assertEq(typeof methods[1], "function");
-assertEq(methods[0] !== methods[1], true);
-
-reportCompare(0, 0, 'ok');
diff --git a/js/src/tests/js1_8_5/extensions/regress-627984-2.js b/js/src/tests/js1_8_5/extensions/regress-627984-2.js
deleted file mode 100644
index c4f1b508c..000000000
--- a/js/src/tests/js1_8_5/extensions/regress-627984-2.js
+++ /dev/null
@@ -1,15 +0,0 @@
-// Any copyright is dedicated to the Public Domain.
-// http://creativecommons.org/licenses/publicdomain/
-
-// See bug 627984, comment 17, item 2.
-var obj = {};
-var x;
-obj.watch("m", function (id, oldval, newval) {
-        x = this.m;
-        return newval;
-    });
-delete obj.m;
-obj.m = function () { return this.method; };
-obj.m = 2;
-
-reportCompare(0, 0, 'ok');
diff --git a/js/src/tests/js1_8_5/extensions/regress-627984-3.js b/js/src/tests/js1_8_5/extensions/regress-627984-3.js
deleted file mode 100644
index cbe4e10fa..000000000
--- a/js/src/tests/js1_8_5/extensions/regress-627984-3.js
+++ /dev/null
@@ -1,14 +0,0 @@
-// Any copyright is dedicated to the Public Domain.
-// http://creativecommons.org/licenses/publicdomain/
-
-// Don't write string value to method slot.
-// See bug 627984, comment 17, item 2.
-var obj = {};
-obj.watch("m", function (id, oldval, newval) {
-        return 'ok';
-    });
-delete obj.m;
-obj.m = function () { return this.x; };
-assertEq(obj.m, 'ok');
-
-reportCompare(0, 0, 'ok');
diff --git a/js/src/tests/js1_8_5/extensions/regress-627984-4.js b/js/src/tests/js1_8_5/extensions/regress-627984-4.js
deleted file mode 100644
index bbc017ffb..000000000
--- a/js/src/tests/js1_8_5/extensions/regress-627984-4.js
+++ /dev/null
@@ -1,15 +0,0 @@
-// Any copyright is dedicated to the Public Domain.
-// http://creativecommons.org/licenses/publicdomain/
-
-// See bug 627984, comment 17, item 3.
-var obj = {};
-obj.watch("m", function (id, oldval, newval) {
-        delete obj.m;
-        obj.m = function () {};
-        return newval;
-    });
-delete obj.m;
-obj.m = 1;
-assertEq(obj.m, 1);
-
-reportCompare(0, 0, 'ok');
diff --git a/js/src/tests/js1_8_5/extensions/regress-627984-5.js b/js/src/tests/js1_8_5/extensions/regress-627984-5.js
deleted file mode 100644
index 704d8421c..000000000
--- a/js/src/tests/js1_8_5/extensions/regress-627984-5.js
+++ /dev/null
@@ -1,13 +0,0 @@
-// Any copyright is dedicated to the Public Domain.
-// http://creativecommons.org/licenses/publicdomain/
-
-// Bug 627984 comment 11.
-var o = ({});
-o.p = function() {};
-o.watch('p', function() { });
-o.q = function() {}
-delete o.p;
-o.p = function() {};
-assertEq(o.p, void 0);
-
-reportCompare(0, 0, 'ok');
diff --git a/js/src/tests/js1_8_5/extensions/regress-627984-6.js b/js/src/tests/js1_8_5/extensions/regress-627984-6.js
deleted file mode 100644
index cb1a0fca9..000000000
--- a/js/src/tests/js1_8_5/extensions/regress-627984-6.js
+++ /dev/null
@@ -1,15 +0,0 @@
-// Any copyright is dedicated to the Public Domain.
-// http://creativecommons.org/licenses/publicdomain/
-
-// Bug 627984 description.
-var o = Array;
-o.p = function() {};
-o.watch('p', function() { }); 
-for(var x in o) { 
-    o[x]; 
-}
-delete o.p;
-o.p = function() {};
-assertEq(o.p, void 0);
-
-reportCompare(0, 0, 'ok');
diff --git a/js/src/tests/js1_8_5/extensions/regress-627984-7.js b/js/src/tests/js1_8_5/extensions/regress-627984-7.js
deleted file mode 100644
index b13a0e912..000000000
--- a/js/src/tests/js1_8_5/extensions/regress-627984-7.js
+++ /dev/null
@@ -1,9 +0,0 @@
-// Any copyright is dedicated to the Public Domain.
-// http://creativecommons.org/licenses/publicdomain/
-
-// See bug 627984 comment 20.
-var obj = {m: function () {}};
-obj.watch("m", function () { throw 'FAIL'; });
-var f = obj.m;  // don't call the watchpoint
-
-reportCompare(0, 0, 'ok');
diff --git a/js/src/tests/js1_8_5/extensions/regress-631723.js b/js/src/tests/js1_8_5/extensions/regress-631723.js
deleted file mode 100644
index f7c755603..000000000
--- a/js/src/tests/js1_8_5/extensions/regress-631723.js
+++ /dev/null
@@ -1,10 +0,0 @@
-// Any copyright is dedicated to the Public Domain.
-// http://creativecommons.org/licenses/publicdomain/
-
-var o = {a:1, b:2};
-o.watch("p", function() { return 13; });
-delete o.p;
-o.p = 0;
-assertEq(o.p, 13);
-
-reportCompare(0, 0, 'ok');
diff --git a/js/src/tests/js1_8_5/extensions/regress-636697.js b/js/src/tests/js1_8_5/extensions/regress-636697.js
deleted file mode 100644
index 6b3b1de37..000000000
--- a/js/src/tests/js1_8_5/extensions/regress-636697.js
+++ /dev/null
@@ -1,11 +0,0 @@
-// Any copyright is dedicated to the Public Domain.
-// http://creativecommons.org/licenses/publicdomain/
-
-var a = {set p(x) {}};
-a.watch('p', function () {});
-var b = Object.create(a);
-b.watch('p', function () {});
-delete b.p;
-b.p = 0;
-
-reportCompare(0, 0, 'ok');
diff --git a/js/src/tests/js1_8_5/extensions/regress-637985.js b/js/src/tests/js1_8_5/extensions/regress-637985.js
deleted file mode 100644
index 305bfc820..000000000
--- a/js/src/tests/js1_8_5/extensions/regress-637985.js
+++ /dev/null
@@ -1,8 +0,0 @@
-// Any copyright is dedicated to the Public Domain.
-// http://creativecommons.org/licenses/publicdomain/
-
-var obj = {};
-obj.watch(-1, function(){});
-obj.unwatch("-1");  // don't assert
-
-reportCompare(0, 0, 'ok');
\ No newline at end of file
diff --git a/js/src/tests/js1_8_5/extensions/regress-691746.js b/js/src/tests/js1_8_5/extensions/regress-691746.js
deleted file mode 100644
index 26f732d07..000000000
--- a/js/src/tests/js1_8_5/extensions/regress-691746.js
+++ /dev/null
@@ -1,11 +0,0 @@
-// Any copyright is dedicated to the Public Domain.
-// http://creativecommons.org/licenses/publicdomain/
-
-var obj = {};
-try {
-    obj.watch(QName(), function () {});
-} catch (exc) {
-}
-gc();
-
-reportCompare(0, 0, 'ok');
diff --git a/js/src/tests/js1_8_5/extensions/watch-undefined-setter.js b/js/src/tests/js1_8_5/extensions/watch-undefined-setter.js
deleted file mode 100644
index 92608de0e..000000000
--- a/js/src/tests/js1_8_5/extensions/watch-undefined-setter.js
+++ /dev/null
@@ -1,19 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/*
- * Any copyright is dedicated to the Public Domain.
- * http://creativecommons.org/licenses/publicdomain/
- * Contributor:
- *   Gary Kwong
- */
-
-var gTestfile = 'watch-undefined-setter.js';
-//-----------------------------------------------------------------------------
-var BUGNUMBER = 560277;
-var summary =
-  'Crash [@ JSObject::getParent] or [@ js_WrapWatchedSetter] or ' +
-  '[@ js_GetClassPrototype]';
-
-this.watch("x", function() { });
-Object.defineProperty(this, "x", { set: undefined, configurable: true });
-
-reportCompare(true, true);
diff --git a/js/src/tests/js1_8_5/regress/regress-533876.js b/js/src/tests/js1_8_5/regress/regress-533876.js
deleted file mode 100644
index e44bc8a4f..000000000
--- a/js/src/tests/js1_8_5/regress/regress-533876.js
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Any copyright is dedicated to the Public Domain.
- * http://creativecommons.org/licenses/publicdomain/
- * Contributors: Gary Kwong and Jason Orendorff
- */
-
-var savedEval = eval;
-var x = [0];
-eval();
-
-x.__proto__ = this;  // x has non-dictionary scope
-try {
-    DIE;
-} catch(e) {
-}
-
-delete eval;  // force dictionary scope for global
-gc();
-eval = savedEval;
-var f = eval("(function () { return /x/; })");
-x.watch('x', f);  // clone property from global to x, including SPROP_IN_DICTIONARY flag
-
-reportCompare("ok", "ok", "bug 533876");
diff --git a/js/src/tests/js1_8_5/regress/regress-548276.js b/js/src/tests/js1_8_5/regress/regress-548276.js
deleted file mode 100644
index 5e306eba1..000000000
--- a/js/src/tests/js1_8_5/regress/regress-548276.js
+++ /dev/null
@@ -1,10 +0,0 @@
-// |reftest| skip
-/*
- * Any copyright is dedicated to the Public Domain.
- * http://creativecommons.org/licenses/publicdomain/
- * Contributors: Gary Kwong and Jason Orendorff
- */
-var obj = {};
-obj.__defineSetter__("x", function() {});
-obj.watch("x", function() {});
-obj.__defineSetter__("x", /a/);
diff --git a/js/src/tests/js1_8_5/regress/regress-584648.js b/js/src/tests/js1_8_5/regress/regress-584648.js
deleted file mode 100644
index a1635ea51..000000000
--- a/js/src/tests/js1_8_5/regress/regress-584648.js
+++ /dev/null
@@ -1,16 +0,0 @@
-// |reftest| skip
-// Any copyright is dedicated to the Public Domain.
-// http://creativecommons.org/licenses/publicdomain/
-// Contributors: Gary Kwong <gary@rumblingedge.com>
-//               Jason Orendorff <jorendorff@mozilla.com>
-
-// on a non-global object
-var x = {};
-x.watch("p", function () { evalcx(''); });
-x.p = 0;
-
-// on the global
-watch("e", (function () { evalcx(''); }));
-e = function () {};
-
-reportCompare(0, 0, "ok");
diff --git a/js/src/tests/js1_8_5/regress/regress-635195.js b/js/src/tests/js1_8_5/regress/regress-635195.js
deleted file mode 100644
index 89980b05a..000000000
--- a/js/src/tests/js1_8_5/regress/regress-635195.js
+++ /dev/null
@@ -1,8 +0,0 @@
-// Any copyright is dedicated to the Public Domain.
-// http://creativecommons.org/licenses/publicdomain/
-
-var obj = {set x(v) {}};
-obj.watch("x", function() { delete obj.x; });
-obj.x = "hi";  // don't assert
-
-reportCompare(0, 0, 'ok');
diff --git a/js/src/tests/js1_8_5/regress/regress-636394.js b/js/src/tests/js1_8_5/regress/regress-636394.js
deleted file mode 100644
index d1a249786..000000000
--- a/js/src/tests/js1_8_5/regress/regress-636394.js
+++ /dev/null
@@ -1,10 +0,0 @@
-// Any copyright is dedicated to the Public Domain.
-// http://creativecommons.org/licenses/publicdomain/
-
-var a = {p0: function () {}};
-var b = /f/;
-b.__proto__ = a;
-b.watch("p0", function () {});
-b.p0;
-
-reportCompare(0, 0, "ok");
diff --git a/js/src/vm/EnvironmentObject.cpp b/js/src/vm/EnvironmentObject.cpp
index a5aac2ab4..3680c5b7b 100644
--- a/js/src/vm/EnvironmentObject.cpp
+++ b/js/src/vm/EnvironmentObject.cpp
@@ -408,7 +408,6 @@ const ObjectOps ModuleEnvironmentObject::objectOps_ = {
     ModuleEnvironmentObject::setProperty,
     ModuleEnvironmentObject::getOwnPropertyDescriptor,
     ModuleEnvironmentObject::deleteProperty,
-    nullptr, nullptr,                                    /* watch/unwatch */
     nullptr,                                             /* getElements */
     ModuleEnvironmentObject::enumerate,
     nullptr
@@ -790,7 +789,6 @@ static const ObjectOps WithEnvironmentObjectOps = {
     with_SetProperty,
     with_GetOwnPropertyDescriptor,
     with_DeleteProperty,
-    nullptr, nullptr,    /* watch/unwatch */
     nullptr,             /* getElements */
     nullptr,             /* enumerate (native enumeration of target doesn't work) */
     nullptr,
@@ -1159,7 +1157,6 @@ static const ObjectOps RuntimeLexicalErrorObjectObjectOps = {
     lexicalError_SetProperty,
     lexicalError_GetOwnPropertyDescriptor,
     lexicalError_DeleteProperty,
-    nullptr, nullptr,    /* watch/unwatch */
     nullptr,             /* getElements */
     nullptr,             /* enumerate (native enumeration of target doesn't work) */
     nullptr,             /* this */
diff --git a/js/src/vm/NativeObject-inl.h b/js/src/vm/NativeObject-inl.h
index e55e3db04..030d92c12 100644
--- a/js/src/vm/NativeObject-inl.h
+++ b/js/src/vm/NativeObject-inl.h
@@ -158,11 +158,11 @@ NativeObject::extendDenseElements(ExclusiveContext* cx,
     MOZ_ASSERT(!denseElementsAreFrozen());
 
     /*
-     * Don't grow elements for non-extensible objects or watched objects. Dense
-     * elements can be added/written with no extensible or watchpoint checks as
-     * long as there is capacity for them.
+     * Don't grow elements for non-extensible objects. Dense elements can be
+     * added/written with no extensible checks as long as there is capacity
+     * for them.
      */
-    if (!nonProxyIsExtensible() || watched()) {
+    if (!nonProxyIsExtensible()) {
         MOZ_ASSERT(getDenseCapacity() == 0);
         return DenseElementResult::Incomplete;
     }
diff --git a/js/src/vm/NativeObject.cpp b/js/src/vm/NativeObject.cpp
index da0f59fe2..d801fad06 100644
--- a/js/src/vm/NativeObject.cpp
+++ b/js/src/vm/NativeObject.cpp
@@ -9,8 +9,6 @@
 #include "mozilla/ArrayUtils.h"
 #include "mozilla/Casting.h"
 
-#include "jswatchpoint.h"
-
 #include "gc/Marking.h"
 #include "js/Value.h"
 #include "vm/Debugger.h"
@@ -602,7 +600,7 @@ NativeObject::maybeDensifySparseElements(js::ExclusiveContext* cx, HandleNativeO
         return DenseElementResult::Incomplete;
 
     /* Watch for conditions under which an object's elements cannot be dense. */
-    if (!obj->nonProxyIsExtensible() || obj->watched())
+    if (!obj->nonProxyIsExtensible())
         return DenseElementResult::Incomplete;
 
     /*
@@ -2410,17 +2408,9 @@ SetExistingProperty(JSContext* cx, HandleNativeObject obj, HandleId id, HandleVa
 }
 
 bool
-js::NativeSetProperty(JSContext* cx, HandleNativeObject obj, HandleId id, HandleValue value,
+js::NativeSetProperty(JSContext* cx, HandleNativeObject obj, HandleId id, HandleValue v,
                       HandleValue receiver, QualifiedBool qualified, ObjectOpResult& result)
 {
-    // Fire watchpoints, if any.
-    RootedValue v(cx, value);
-    if (MOZ_UNLIKELY(obj->watched())) {
-        WatchpointMap* wpmap = cx->compartment()->watchpointMap;
-        if (wpmap && !wpmap->triggerWatchpoint(cx, obj, id, &v))
-            return false;
-    }
-
     // Step numbers below reference ES6 rev 27 9.1.9, the [[Set]] internal
     // method for ordinary objects. We substitute our own names for these names
     // used in the spec: O -> pobj, P -> id, ownDesc -> shape.
diff --git a/js/src/vm/Runtime.cpp b/js/src/vm/Runtime.cpp
index 5fc8e0e17..284a4f3d7 100644
--- a/js/src/vm/Runtime.cpp
+++ b/js/src/vm/Runtime.cpp
@@ -34,7 +34,6 @@
 #include "jsnativestack.h"
 #include "jsobj.h"
 #include "jsscript.h"
-#include "jswatchpoint.h"
 #include "jswin.h"
 #include "jswrapper.h"
 
diff --git a/js/src/vm/Shape.h b/js/src/vm/Shape.h
index fd6d843e0..85bc044a5 100644
--- a/js/src/vm/Shape.h
+++ b/js/src/vm/Shape.h
@@ -387,7 +387,7 @@ class BaseShape : public gc::TenuredCell
         INDEXED             =   0x20,
         /* (0x40 is unused) */
         HAD_ELEMENTS_ACCESS =   0x80,
-        WATCHED             =  0x100,
+        /* (0x100 is unused) */
         ITERATED_SINGLETON  =  0x200,
         NEW_GROUP_UNKNOWN   =  0x400,
         UNCACHEABLE_PROTO   =  0x800,
diff --git a/js/src/vm/Time.cpp b/js/src/vm/Time.cpp
index 87531c148..a9a5b7f0f 100644
--- a/js/src/vm/Time.cpp
+++ b/js/src/vm/Time.cpp
@@ -11,6 +11,10 @@
 #include "mozilla/DebugOnly.h"
 #include "mozilla/MathAlgorithms.h"
 
+#ifdef XP_SOLARIS
+#define _REENTRANT 1
+#endif
+
 #include <string.h>
 #include <time.h>
 
@@ -30,6 +34,10 @@
 
 #ifdef XP_UNIX
 
+#ifdef _SVID_GETTOD /* Defined only on Solaris, see Solaris <sys/types.h> */
+extern int gettimeofday(struct timeval* tv);
+#endif
+
 #include <sys/time.h>
 
 #endif /* XP_UNIX */
@@ -42,7 +50,11 @@ PRMJ_Now()
 {
     struct timeval tv;
 
+#ifdef _SVID_GETTOD /* Defined only on Solaris, see Solaris <sys/types.h> */
+    gettimeofday(&tv);
+#else
     gettimeofday(&tv, 0);
+#endif /* _SVID_GETTOD */    
 
     return int64_t(tv.tv_sec) * PRMJ_USEC_PER_SEC + int64_t(tv.tv_usec);
 }
diff --git a/js/src/vm/TypeInference.cpp b/js/src/vm/TypeInference.cpp
index 7c2c0194e..2b1fa0e3b 100644
--- a/js/src/vm/TypeInference.cpp
+++ b/js/src/vm/TypeInference.cpp
@@ -2670,14 +2670,6 @@ ObjectGroup::updateNewPropertyTypes(ExclusiveContext* cx, JSObject* objArg, jsid
         if (shape)
             UpdatePropertyType(cx, types, obj, shape, false);
     }
-
-    if (obj->watched()) {
-        /*
-         * Mark the property as non-data, to inhibit optimizations on it
-         * and avoid bypassing the watchpoint handler.
-         */
-        types->setNonDataProperty(cx);
-    }
 }
 
 void
@@ -3084,29 +3076,39 @@ class TypeConstraintClearDefiniteGetterSetter : public TypeConstraint
 };
 
 bool
-js::AddClearDefiniteGetterSetterForPrototypeChain(JSContext* cx, ObjectGroup* group, HandleId id)
+js::AddClearDefiniteGetterSetterForPrototypeChain(JSContext* cx,
+                                                  DPAConstraintInfo& constraintInfo,
+                                                  ObjectGroup* group,
+                                                  HandleId id,
+                                                  bool* added)
 {
     /*
      * Ensure that if the properties named here could have a getter, setter or
      * a permanent property in any transitive prototype, the definite
      * properties get cleared from the group.
      */
+     
+    *added = false;
+    
     RootedObject proto(cx, group->proto().toObjectOrNull());
     while (proto) {
         ObjectGroup* protoGroup = JSObject::getGroup(cx, proto);
         if (!protoGroup) {
-            cx->recoverFromOutOfMemory();
             return false;
         }
         if (protoGroup->unknownProperties())
-            return false;
+            return true;
         HeapTypeSet* protoTypes = protoGroup->getProperty(cx, proto, id);
-        if (!protoTypes || protoTypes->nonDataProperty() || protoTypes->nonWritableProperty())
+        if (!protoTypes)
             return false;
-        if (!protoTypes->addConstraint(cx, cx->typeLifoAlloc().new_<TypeConstraintClearDefiniteGetterSetter>(group)))
+        if (protoTypes->nonDataProperty() || protoTypes->nonWritableProperty())
+            return true;
+        if (!constraintInfo.addProtoConstraint(proto, id))
             return false;
         proto = proto->staticPrototype();
     }
+    
+    *added = true;
     return true;
 }
 
@@ -3612,6 +3614,43 @@ struct DestroyTypeNewScript
 
 } // namespace
 
+bool DPAConstraintInfo::finishConstraints(JSContext* cx, ObjectGroup* group) {
+  for (const ProtoConstraint& constraint : protoConstraints_) {
+    ObjectGroup* protoGroup = constraint.proto->group();
+
+    // Note: we rely on the group's type information being unchanged since
+    // AddClearDefiniteGetterSetterForPrototypeChain.
+
+    bool unknownProperties = protoGroup->unknownProperties();
+    MOZ_RELEASE_ASSERT(!unknownProperties);
+
+    HeapTypeSet* protoTypes =
+        protoGroup->getProperty(cx, constraint.proto, constraint.id);
+    MOZ_RELEASE_ASSERT(protoTypes);
+
+    MOZ_ASSERT(!protoTypes->nonDataProperty());
+    MOZ_ASSERT(!protoTypes->nonWritableProperty());
+
+    if (!protoTypes->addConstraint(
+            cx,
+            cx->typeLifoAlloc().new_<TypeConstraintClearDefiniteGetterSetter>(
+                group))) {
+      ReportOutOfMemory(cx);
+      return false;
+    }
+  }
+
+  for (const InliningConstraint& constraint : inliningConstraints_) {
+    if (!AddClearDefiniteFunctionUsesInScript(cx, group, constraint.caller,
+                                              constraint.callee)) {
+      ReportOutOfMemory(cx);
+      return false;
+    }
+  }
+
+  return true;
+}
+
 bool
 TypeNewScript::maybeAnalyze(JSContext* cx, ObjectGroup* group, bool* regenerate, bool force)
 {
@@ -3715,10 +3754,17 @@ TypeNewScript::maybeAnalyze(JSContext* cx, ObjectGroup* group, bool* regenerate,
         return false;
 
     Vector<Initializer> initializerVector(cx);
+    
+    DPAConstraintInfo constraintInfo(cx);
 
     RootedPlainObject templateRoot(cx, templateObject());
     RootedFunction fun(cx, function());
-    if (!jit::AnalyzeNewScriptDefiniteProperties(cx, fun, group, templateRoot, &initializerVector))
+    if (!jit::AnalyzeNewScriptDefiniteProperties(cx,
+                                                 constraintInfo,
+                                                 fun,
+                                                 group,
+                                                 templateRoot,
+                                                 &initializerVector))
         return false;
 
     if (!group->newScript())
@@ -3772,6 +3818,14 @@ TypeNewScript::maybeAnalyze(JSContext* cx, ObjectGroup* group, bool* regenerate,
         // The definite properties analysis found exactly the properties that
         // are held in common by the preliminary objects. No further analysis
         // is needed.
+
+        if (!constraintInfo.finishConstraints(cx, group)) {
+            return false;
+        }
+        if (!group->newScript()) {
+            return true;
+        }
+
         group->addDefiniteProperties(cx, templateObject()->lastProperty());
 
         destroyNewScript.group = nullptr;
@@ -3793,6 +3847,16 @@ TypeNewScript::maybeAnalyze(JSContext* cx, ObjectGroup* group, bool* regenerate,
     if (!initialGroup)
         return false;
 
+    // Add the constraints. Use the initialGroup as group referenced by the
+    // constraints because that's the group that will have the TypeNewScript
+    // associated with it. See the detachNewScript and setNewScript calls below.
+    if (!constraintInfo.finishConstraints(cx, initialGroup)) {
+        return false;
+    }
+    if (!group->newScript()) {
+        return true;
+    }
+
     initialGroup->addDefiniteProperties(cx, templateObject()->lastProperty());
     group->addDefiniteProperties(cx, prefixShape);
 
diff --git a/js/src/vm/TypeInference.h b/js/src/vm/TypeInference.h
index 94ce7e871..fd021fc96 100644
--- a/js/src/vm/TypeInference.h
+++ b/js/src/vm/TypeInference.h
@@ -789,8 +789,65 @@ class TemporaryTypeSet : public TypeSet
                                  TypedArraySharedness* sharedness);
 };
 
+// Stack class to record information about constraints that need to be added
+// after finishing the Definite Properties Analysis. When the analysis succeeds,
+// the |finishConstraints| method must be called to add the constraints to the
+// TypeSets.
+//
+// There are two constraint types managed here:
+//
+//   1. Proto constraints for HeapTypeSets, to guard against things like getters
+//      and setters on the proto chain.
+//
+//   2. Inlining constraints for StackTypeSets, to invalidate when additional
+//      functions could be called at call sites where we inlined a function.
+//
+// This class uses bare GC-thing pointers because GC is suppressed when the
+// analysis runs.
+class MOZ_RAII DPAConstraintInfo {
+  struct ProtoConstraint {
+    JSObject* proto;
+    jsid id;
+    ProtoConstraint(JSObject* proto, jsid id) : proto(proto), id(id) {}
+  };
+  struct InliningConstraint {
+    JSScript* caller;
+    JSScript* callee;
+    InliningConstraint(JSScript* caller, JSScript* callee)
+        : caller(caller), callee(callee) {}
+  };
+
+  JS::AutoCheckCannotGC nogc_;
+  Vector<ProtoConstraint, 8> protoConstraints_;
+  Vector<InliningConstraint, 4> inliningConstraints_;
+
+public:
+  explicit DPAConstraintInfo(JSContext* cx)
+      : nogc_(cx)
+      , protoConstraints_(cx)
+      , inliningConstraints_(cx)
+  {
+  }
+
+  DPAConstraintInfo(const DPAConstraintInfo&) = delete;
+  void operator=(const DPAConstraintInfo&) = delete;
+
+  MOZ_MUST_USE bool addProtoConstraint(JSObject* proto, jsid id) {
+    return protoConstraints_.emplaceBack(proto, id);
+  }
+  MOZ_MUST_USE bool addInliningConstraint(JSScript* caller, JSScript* callee) {
+    return inliningConstraints_.emplaceBack(caller, callee);
+  }
+
+  MOZ_MUST_USE bool finishConstraints(JSContext* cx, ObjectGroup* group);
+};
+
 bool
-AddClearDefiniteGetterSetterForPrototypeChain(JSContext* cx, ObjectGroup* group, HandleId id);
+AddClearDefiniteGetterSetterForPrototypeChain(JSContext* cx,
+                                              DPAConstraintInfo& constraintInfo,
+                                              ObjectGroup* group,
+                                              HandleId id,
+                                              bool* added);
 
 bool
 AddClearDefiniteFunctionUsesInScript(JSContext* cx, ObjectGroup* group,
diff --git a/js/src/wasm/WasmSignalHandlers.cpp b/js/src/wasm/WasmSignalHandlers.cpp
index c4733cc96..21093ca9a 100644
--- a/js/src/wasm/WasmSignalHandlers.cpp
+++ b/js/src/wasm/WasmSignalHandlers.cpp
@@ -130,11 +130,16 @@ class AutoSetHandlingSegFault
 #  define EPC_sig(p) ((p)->sc_pc)
 #  define RFP_sig(p) ((p)->sc_regs[30])
 # endif
-#elif defined(__linux__)
+#elif defined(__linux__) || defined(__sun)
 # if defined(__linux__)
 #  define XMM_sig(p,i) ((p)->uc_mcontext.fpregs->_xmm[i])
 #  define EIP_sig(p) ((p)->uc_mcontext.gregs[REG_EIP])
-# else
+# else // defined(__sun)
+/* See https://www.illumos.org/issues/5876. They keep arguing over whether 
+ * <ucontext.h> should provide the register index defines in regset.h or 
+ * require applications to request them specifically, and we need them here. */
+#include <ucontext.h>
+#include <sys/regset.h>
 #  define XMM_sig(p,i) ((p)->uc_mcontext.fpregs.fp_reg_set.fpchip_state.xmm[i])
 #  define EIP_sig(p) ((p)->uc_mcontext.gregs[REG_PC])
 # endif
diff --git a/js/xpconnect/src/XPCShellImpl.cpp b/js/xpconnect/src/XPCShellImpl.cpp
index 4ddc8deb3..abe50f449 100644
--- a/js/xpconnect/src/XPCShellImpl.cpp
+++ b/js/xpconnect/src/XPCShellImpl.cpp
@@ -644,6 +644,7 @@ env_setProperty(JSContext* cx, HandleObject obj, HandleId id, MutableHandleValue
                 ObjectOpResult& result)
 {
 /* XXX porting may be easy, but these don't seem to supply setenv by default */
+#if !defined XP_SOLARIS	
     RootedString valstr(cx);
     RootedString idstr(cx);
     int rv;
@@ -686,6 +687,7 @@ env_setProperty(JSContext* cx, HandleObject obj, HandleId id, MutableHandleValue
         return false;
     }
     vp.setString(valstr);
+#endif /* !defined XP_SOLARIS */    
     return result.succeed();
 }
 
diff --git a/js/xpconnect/src/XPCWrappedNativeJSOps.cpp b/js/xpconnect/src/XPCWrappedNativeJSOps.cpp
index 12b203b70..08ba8241a 100644
--- a/js/xpconnect/src/XPCWrappedNativeJSOps.cpp
+++ b/js/xpconnect/src/XPCWrappedNativeJSOps.cpp
@@ -924,8 +924,6 @@ const js::ObjectOps XPC_WN_ObjectOpsWithEnumerate = {
     nullptr,  // setProperty
     nullptr,  // getOwnPropertyDescriptor
     nullptr,  // deleteProperty
-    nullptr,  // watch
-    nullptr,  // unwatch
     nullptr,  // getElements
     XPC_WN_JSOp_Enumerate,
     nullptr,  // funToString
diff --git a/js/xpconnect/src/moz.build b/js/xpconnect/src/moz.build
index 7d9cd5b37..29cfc4776 100644
--- a/js/xpconnect/src/moz.build
+++ b/js/xpconnect/src/moz.build
@@ -66,4 +66,4 @@ LOCAL_INCLUDES += [
 ]
 
 if CONFIG['GNU_CXX']:
-    CXXFLAGS += ['-Wno-shadow', '-Werror=format']
+    CXXFLAGS += ['-Wno-shadow']
diff --git a/js/xpconnect/tests/chrome/chrome.ini b/js/xpconnect/tests/chrome/chrome.ini
index 5a7b98214..d89c89b54 100644
--- a/js/xpconnect/tests/chrome/chrome.ini
+++ b/js/xpconnect/tests/chrome/chrome.ini
@@ -106,7 +106,6 @@ skip-if = os == 'win' || os == 'mac' # bug 1131110
 [test_precisegc.xul]
 [test_sandboxImport.xul]
 [test_scriptSettings.xul]
-[test_watchpoints.xul]
 [test_weakmap_keys_preserved.xul]
 [test_weakmap_keys_preserved2.xul]
 [test_weakmaps.xul]
diff --git a/js/xpconnect/tests/chrome/test_watchpoints.xul b/js/xpconnect/tests/chrome/test_watchpoints.xul
deleted file mode 100644
index 2262b1a90..000000000
--- a/js/xpconnect/tests/chrome/test_watchpoints.xul
+++ /dev/null
@@ -1,75 +0,0 @@
-<?xml version="1.0"?>
-<?xml-stylesheet type="text/css" href="chrome://global/skin"?>
-<?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
-<!--
-https://bugzilla.mozilla.org/show_bug.cgi?id=693527
--->
-<window title="Mozilla Bug "
-        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
-  <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
-
-  <!-- test results are displayed in the html:body -->
-  <body xmlns="http://www.w3.org/1999/xhtml">
-  <a href="https://bugzilla.mozilla.org/show_bug.cgi?id="
-     target="_blank">Mozilla Bug 693527</a>
-  </body>
-
-  <!-- test code goes here -->
-  <script type="application/javascript">
-  <![CDATA[
-  /** Test for Bug 693527 **/
-
-  let Cu = Components.utils;
-  let Ci = Components.interfaces;
-
-  /* Create a weak reference, with a single-element weak map. */
-  let make_weak_ref = function (obj) {
-    let m = new WeakMap;
-    m.set(obj, {});
-    return m;
-  };
-
-  /* Check to see if a weak reference is dead. */
-  let weak_ref_dead = function (r) {
-    return ThreadSafeChromeUtils.nondeterministicGetWeakMapKeys(r).length == 0;
-  }
-
-
-  let make_cycle = function () {
-    var p = document.createElement("p");
-    p.children.x = p;
-    var f = function() { };
-    p.watch("y", f);
-    var d = document.createElement("div");
-    d.appendChild(p);
-    f.loop = d;
-    f.bar = {}; // observing f directly makes the leak go away even without the CC somehow
-    return make_weak_ref(f.bar);
-  };
-
-  var cycle_ref = make_cycle();
-
-
-  /* set up for running precise GC/CC then checking the results */
-
-  SimpleTest.waitForExplicitFinish();
-
-  Cu.schedulePreciseGC(function () {
-    window.QueryInterface(Ci.nsIInterfaceRequestor)
-         .getInterface(Ci.nsIDOMWindowUtils)
-         .cycleCollect();
-    window.QueryInterface(Ci.nsIInterfaceRequestor)
-         .getInterface(Ci.nsIDOMWindowUtils)
-         .garbageCollect();
-    window.QueryInterface(Ci.nsIInterfaceRequestor)
-         .getInterface(Ci.nsIDOMWindowUtils)
-         .garbageCollect();
-  
-    ok(weak_ref_dead(cycle_ref), "Garbage gray watchpoint cycle should be collected.");
-
-    SimpleTest.finish();
-  });
-
-  ]]>
-  </script>
-</window>
diff --git a/js/xpconnect/tests/chrome/test_xrayToJS.xul b/js/xpconnect/tests/chrome/test_xrayToJS.xul
index 73de267a1..495b99607 100644
--- a/js/xpconnect/tests/chrome/test_xrayToJS.xul
+++ b/js/xpconnect/tests/chrome/test_xrayToJS.xul
@@ -182,8 +182,8 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=933681
     "toGMTString", Symbol.toPrimitive];
   gConstructorProperties['Date'] = constructorProps(["UTC", "parse", "now"]);
   gPrototypeProperties['Object'] =
-    ["constructor", "toSource", "toString", "toLocaleString", "valueOf", "watch",
-     "unwatch", "hasOwnProperty", "isPrototypeOf", "propertyIsEnumerable",
+    ["constructor", "toSource", "toString", "toLocaleString", "valueOf",
+     "hasOwnProperty", "isPrototypeOf", "propertyIsEnumerable",
      "__defineGetter__", "__defineSetter__", "__lookupGetter__", "__lookupSetter__",
      "__proto__"];
   gConstructorProperties['Object'] =