Merge branch 'master' into js-modules

# Conflicts:
#	modules/libpref/init/all.js

30 files changed, 40 insertions, 417 deletions

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/bug713226.js b/js/src/jit-test/tests/basic/bug713226.js
index 3ae991f43..36858b86c 100644
--- a/js/src/jit-test/tests/basic/bug713226.js
+++ b/js/src/jit-test/tests/basic/bug713226.js
@@ -8,7 +8,7 @@ function addDebug(g, id) {\
     var debuggerGlobal = newGlobal();\
     debuggerGlobal.debuggee = g;\
     debuggerGlobal.id = id;\
-    debuggerGlobal.print = function (s) { (g) += s; };\
+    debuggerGlobal.print = function (s) { print(s); };\
     debuggerGlobal.eval('var dbg = new Debugger(debuggee);dbg.onDebuggerStatement = function () { print(id); debugger; };');\
     return debuggerGlobal;\
 }\
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/function-tosource-bug779694.js b/js/src/jit-test/tests/basic/function-tosource-bug779694.js
index 3893d3ff2..782b2594b 100644
--- a/js/src/jit-test/tests/basic/function-tosource-bug779694.js
+++ b/js/src/jit-test/tests/basic/function-tosource-bug779694.js
@@ -5,4 +5,4 @@ for (var i=0; i<400; ++i) {
     x += String.fromCharCode(i * 289);
 }
 var s = "'" + x + "'";
-assertEq(Function("evt", s).toString(), "function anonymous(evt) {\n" + s + "\n}");
+assertEq(Function("evt", s).toString(), "function anonymous(evt\n) {\n" + s + "\n}");
diff --git a/js/src/jit-test/tests/basic/function-tosource-constructor.js b/js/src/jit-test/tests/basic/function-tosource-constructor.js
index e1d144364..9a8961fe2 100644
--- a/js/src/jit-test/tests/basic/function-tosource-constructor.js
+++ b/js/src/jit-test/tests/basic/function-tosource-constructor.js
@@ -1,14 +1,14 @@
 var f = Function("a", "b", "return a + b;");
-assertEq(f.toString(), "function anonymous(a, b) {\nreturn a + b;\n}");
-assertEq(f.toSource(), "(function anonymous(a, b) {\nreturn a + b;\n})");
+assertEq(f.toString(), "function anonymous(a,b\n) {\nreturn a + b;\n}");
+assertEq(f.toSource(), "(function anonymous(a,b\n) {\nreturn a + b;\n})");
 assertEq(decompileFunction(f), f.toString());
 f = Function("a", "...rest", "return rest[42] + b;");
-assertEq(f.toString(), "function anonymous(a, ...rest) {\nreturn rest[42] + b;\n}");
-assertEq(f.toSource(), "(function anonymous(a, ...rest) {\nreturn rest[42] + b;\n})")
+assertEq(f.toString(), "function anonymous(a,...rest\n) {\nreturn rest[42] + b;\n}");
+assertEq(f.toSource(), "(function anonymous(a,...rest\n) {\nreturn rest[42] + b;\n})")
 assertEq(decompileFunction(f), f.toString());
 f = Function("");
-assertEq(f.toString(), "function anonymous() {\n\n}");
+assertEq(f.toString(), "function anonymous(\n) {\n\n}");
 f = Function("", "(abc)");
-assertEq(f.toString(), "function anonymous() {\n(abc)\n}");
-f = Function("", "return function (a, b) a + b;")();
-assertEq(f.toString(), "function (a, b) a + b");
+assertEq(f.toString(), "function anonymous(\n) {\n(abc)\n}");
+f = Function("", "return function (a,b) a + b;")();
+assertEq(f.toString(), "function (a,b) a + b");
diff --git a/js/src/jit-test/tests/basic/function-tosource-getset.js b/js/src/jit-test/tests/basic/function-tosource-getset.js
index 36c6d010e..1804d38f2 100644
--- a/js/src/jit-test/tests/basic/function-tosource-getset.js
+++ b/js/src/jit-test/tests/basic/function-tosource-getset.js
@@ -1,7 +1,7 @@
 var o = {get prop() a + b, set prop(x) a + b};
 var prop = Object.getOwnPropertyDescriptor(o, "prop");
-assertEq(prop.get.toString(), "function get prop() a + b");
-assertEq(prop.get.toSource(), "(function get prop() a + b)");
-assertEq(prop.set.toString(), "function set prop(x) a + b");
-assertEq(prop.set.toSource(), "(function set prop(x) a + b)");
-assertEq(o.toSource(), "({get prop () a + b, set prop (x) a + b})");
+assertEq(prop.get.toString(), "get prop() { a + b; }");
+assertEq(prop.get.toSource(), "get prop() { a + b; }");
+assertEq(prop.set.toString(), "set prop(x) { a + b; }");
+assertEq(prop.set.toSource(), "set prop(x) { a + b; }");
+assertEq(o.toSource(), "({get prop() { a + b; }, set prop(x) { a + b; }})");
diff --git a/js/src/jit-test/tests/basic/hasnativemethodpure-optimization.js b/js/src/jit-test/tests/basic/hasnativemethodpure-optimization.js
new file mode 100644
index 000000000..2f5e99186
--- /dev/null
+++ b/js/src/jit-test/tests/basic/hasnativemethodpure-optimization.js
@@ -0,0 +1,21 @@
+load(libdir + "asserts.js");
+
+let string = Object.defineProperty(new String("123"), "valueOf", {
+    get: function() { throw "get-valueOf"; }
+});
+assertThrowsValue(() => "" + string, "get-valueOf");
+
+string = Object.defineProperty(new String("123"), "toString", {
+    get: function() { throw "get-toString"; }
+});
+assertThrowsValue(() => string.toLowerCase(), "get-toString");
+
+string = Object.defineProperty(new String("123"), Symbol.toPrimitive, {
+    get: function() { throw "get-toPrimitive"; }
+});
+assertThrowsValue(() => string.toLowerCase(), "get-toPrimitive");
+
+let number = Object.defineProperty(new Number(123), "valueOf", {
+    get: function() { throw "get-valueOf"; }
+});
+assertThrowsValue(() => +number, "get-valueOf");
\ No newline at end of file
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/testFunctionStatementAliasLocals.js b/js/src/jit-test/tests/basic/testFunctionStatementAliasLocals.js
index 7be49b7f3..be7f528b9 100644
--- a/js/src/jit-test/tests/basic/testFunctionStatementAliasLocals.js
+++ b/js/src/jit-test/tests/basic/testFunctionStatementAliasLocals.js
@@ -8,9 +8,11 @@ assertEq(typeof f1(true), "function");
 assertEq(f1(false), 3);
 
 function f2(b, w) {
+    // Annex B doesn't apply to functions in blocks with the same name as a
+    // parameter.
     if (b)
         function w() {}
     return w;
 }
-assertEq(typeof f2(true, 3), "function");
+assertEq(typeof f2(true, 3), "number");
 assertEq(f2(false, 3), 3);
diff --git a/js/src/jit-test/tests/basic/testLet.js b/js/src/jit-test/tests/basic/testLet.js
index 263c3eb8a..9a2f39197 100644
--- a/js/src/jit-test/tests/basic/testLet.js
+++ b/js/src/jit-test/tests/basic/testLet.js
@@ -9,7 +9,7 @@ function test(str, arg, result)
     var fun = new Function('x', str);
 
     var got = fun.toSource();
-    var expect = '(function anonymous(x) {\n' + str + '\n})';
+    var expect = '(function anonymous(x\n) {\n' + str + '\n})';
     if (got !== expect) {
         print("GOT:    " + got);
         print("EXPECT: " + expect);
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/basic/unboxed-object-clear-new-script.js b/js/src/jit-test/tests/basic/unboxed-object-clear-new-script.js
deleted file mode 100644
index f55456222..000000000
--- a/js/src/jit-test/tests/basic/unboxed-object-clear-new-script.js
+++ /dev/null
@@ -1,49 +0,0 @@
-
-function Foo(a, b) {
-    this.a = a;
-    this.b = b;
-}
-
-function invalidate_foo() {
-    var a = [];
-    var counter = 0;
-    for (var i = 0; i < 50; i++)
-        a.push(new Foo(i, i + 1));
-    Object.defineProperty(Foo.prototype, "a", {configurable: true, set: function() { counter++; }});
-    for (var i = 0; i < 50; i++)
-        a.push(new Foo(i, i + 1));
-    delete Foo.prototype.a;
-    var total = 0;
-    for (var i = 0; i < a.length; i++) {
-        assertEq('a' in a[i], i < 50);
-        total += a[i].b;
-    }
-    assertEq(total, 2550);
-    assertEq(counter, 50);
-}
-invalidate_foo();
-
-function Bar(a, b, fn) {
-    this.a = a;
-    if (b == 30)
-        Object.defineProperty(Bar.prototype, "b", {configurable: true, set: fn});
-    this.b = b;
-}
-
-function invalidate_bar() {
-    var a = [];
-    var counter = 0;
-    function fn() { counter++; }
-    for (var i = 0; i < 50; i++)
-        a.push(new Bar(i, i + 1, fn));
-    delete Bar.prototype.b;
-    var total = 0;
-    for (var i = 0; i < a.length; i++) {
-        assertEq('a' in a[i], true);
-        assertEq('b' in a[i], i < 29);
-        total += a[i].a;
-    }
-    assertEq(total, 1225);
-    assertEq(counter, 21);
-}
-invalidate_bar();
diff --git a/js/src/jit-test/tests/basic/unboxed-object-convert-to-native.js b/js/src/jit-test/tests/basic/unboxed-object-convert-to-native.js
deleted file mode 100644
index 691fe166c..000000000
--- a/js/src/jit-test/tests/basic/unboxed-object-convert-to-native.js
+++ /dev/null
@@ -1,47 +0,0 @@
-
-// Test various ways of converting an unboxed object to native.
-
-function Foo(a, b) {
-    this.a = a;
-    this.b = b;
-}
-
-var proxyObj = {
-  get: function(recipient, name) {
-    return recipient[name] + 2;
-  }
-};
-
-function f() {
-    var a = [];
-    for (var i = 0; i < 50; i++)
-        a.push(new Foo(i, i + 1));
-
-    var prop = "a";
-
-    i = 0;
-    for (; i < 5; i++)
-        a[i].c = i;
-    for (; i < 10; i++)
-        Object.defineProperty(a[i], 'c', {value: i});
-    for (; i < 15; i++)
-        a[i] = new Proxy(a[i], proxyObj);
-    for (; i < 20; i++)
-        a[i].a = 3.5;
-    for (; i < 25; i++)
-        delete a[i].b;
-    for (; i < 30; i++)
-        a[prop] = 4;
-
-    var total = 0;
-    for (i = 0; i < a.length; i++) {
-        if ('a' in a[i])
-            total += a[i].a;
-        if ('b' in a[i])
-            total += a[i].b;
-        if ('c' in a[i])
-            total += a[i].c;
-    }
-    assertEq(total, 2382.5);
-}
-f();
diff --git a/js/src/jit-test/tests/basic/unboxed-object-getelem.js b/js/src/jit-test/tests/basic/unboxed-object-getelem.js
deleted file mode 100644
index b30b8325a..000000000
--- a/js/src/jit-test/tests/basic/unboxed-object-getelem.js
+++ /dev/null
@@ -1,20 +0,0 @@
-
-function f() {
-    var propNames = ["a","b","c","d","e","f","g","h","i","j","x","y"];
-    var arr = [];
-    for (var i=0; i<64; i++)
-	arr.push({x:1, y:2});
-    for (var i=0; i<64; i++) {
-        // Make sure there are expandos with dynamic slots for each object.
-        for (var j = 0; j < propNames.length; j++)
-            arr[i][propNames[j]] = j;
-    }
-    var res = 0;
-    for (var i=0; i<100000; i++) {
-	var o = arr[i % 64];
-	var p = propNames[i % propNames.length];
-	res += o[p];
-    }
-    assertEq(res, 549984);
-}
-f();
diff --git a/js/src/jit-test/tests/basic/unboxed-object-set-property.js b/js/src/jit-test/tests/basic/unboxed-object-set-property.js
deleted file mode 100644
index fdcfcf6b2..000000000
--- a/js/src/jit-test/tests/basic/unboxed-object-set-property.js
+++ /dev/null
@@ -1,31 +0,0 @@
-
-// Use the correct receiver when non-native objects are prototypes of other objects.
-
-function Thing(a, b) {
-    this.a = a;
-    this.b = b;
-}
-
-function foo() {
-    var array = [];
-    for (var i = 0; i < 10000; i++)
-        array.push(new Thing(i, i + 1));
-
-    var proto = new Thing(1, 2);
-    var obj = Object.create(proto);
-
-    Object.defineProperty(Thing.prototype, "c", {set:function() { this.d = 0; }});
-    obj.c = 3;
-    assertEq(obj.c, undefined);
-    assertEq(obj.d, 0);
-    assertEq(obj.hasOwnProperty("d"), true);
-    assertEq(proto.d, undefined);
-    assertEq(proto.hasOwnProperty("d"), false);
-
-    obj.a = 3;
-    assertEq(obj.a, 3);
-    assertEq(proto.a, 1);
-    assertEq(obj.hasOwnProperty("a"), true);
-}
-
-foo();
diff --git a/js/src/jit-test/tests/basic/unboxed-property-enumeration.js b/js/src/jit-test/tests/basic/unboxed-property-enumeration.js
deleted file mode 100644
index 142d932dd..000000000
--- a/js/src/jit-test/tests/basic/unboxed-property-enumeration.js
+++ /dev/null
@@ -1,24 +0,0 @@
-function O() {
-    this.x = 1;
-    this.y = 2;
-}
-function testUnboxed() {
-    var arr = [];
-    for (var i=0; i<100; i++)
-	arr.push(new O);
-
-    var o = arr[arr.length-1];
-    o[0] = 0;
-    o[2] = 2;
-    var sym = Symbol();
-    o[sym] = 1;
-    o.z = 3;
-    Object.defineProperty(o, '3', {value:1,enumerable:false,configurable:false,writable:false});
-    o[4] = 4;
-
-    var props = Reflect.ownKeys(o);
-    assertEq(props[props.length-1], sym);
-
-    assertEq(Object.getOwnPropertyNames(o).join(""), "0234xyz");
-}
-testUnboxed();