1 files changed, 1025 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/baseline/no-such-property-getprop.js b/js/src/jit-test/tests/baseline/no-such-property-getprop.js
new file mode 100644
index 000000000..72303d266
--- /dev/null
+++ b/js/src/jit-test/tests/baseline/no-such-property-getprop.js
@@ -0,0 +1,1025 @@
+/////////////////////////////////////////
+// This is a generated file!
+// See jit-tests/etc/generate-nosuchproperty-tests.js for the code
+// that generated this code!
+/////////////////////////////////////////
+
+/////////////////////////////////////////
+// PRELUDE                             //
+/////////////////////////////////////////
+
+function createTower(n) {
+    var result = Object.create(null);
+    for (var i = 0; i < n; i++)
+        result = Object.create(result);
+    return result;
+}
+function updateChain(obj, depth, prop, value) {
+    // Walk down the proto chain |depth| iterations and set |prop| to |value|.
+    var cur = obj;
+    for (var i = 0; i < depth; i++)
+        cur = Object.getPrototypeOf(cur);
+
+    var desc = {value:value, writable:true, configurable:true, enumerable:true};
+    Object.defineProperty(cur, prop, desc);
+}
+
+/////////////////////////////////////////
+// TEST CASES                          //
+/////////////////////////////////////////
+
+//// Test chain of length 0 with late-property-addition at depth 0
+function runChain_0_0(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_0_0() {
+    var obj = createTower(0);
+    assertEq(runChain_0_0(obj), NaN);
+    updateChain(obj, 0, 'foo', 9);
+    assertEq(runChain_0_0(obj), 900);
+}
+
+//// Test chain of length 1 with late-property-addition at depth 0
+function runChain_1_0(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_1_0() {
+    var obj = createTower(1);
+    assertEq(runChain_1_0(obj), NaN);
+    updateChain(obj, 0, 'foo', 9);
+    assertEq(runChain_1_0(obj), 900);
+}
+
+//// Test chain of length 1 with late-property-addition at depth 1
+function runChain_1_1(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_1_1() {
+    var obj = createTower(1);
+    assertEq(runChain_1_1(obj), NaN);
+    updateChain(obj, 1, 'foo', 9);
+    assertEq(runChain_1_1(obj), 900);
+}
+
+//// Test chain of length 2 with late-property-addition at depth 0
+function runChain_2_0(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_2_0() {
+    var obj = createTower(2);
+    assertEq(runChain_2_0(obj), NaN);
+    updateChain(obj, 0, 'foo', 9);
+    assertEq(runChain_2_0(obj), 900);
+}
+
+//// Test chain of length 2 with late-property-addition at depth 1
+function runChain_2_1(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_2_1() {
+    var obj = createTower(2);
+    assertEq(runChain_2_1(obj), NaN);
+    updateChain(obj, 1, 'foo', 9);
+    assertEq(runChain_2_1(obj), 900);
+}
+
+//// Test chain of length 2 with late-property-addition at depth 2
+function runChain_2_2(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_2_2() {
+    var obj = createTower(2);
+    assertEq(runChain_2_2(obj), NaN);
+    updateChain(obj, 2, 'foo', 9);
+    assertEq(runChain_2_2(obj), 900);
+}
+
+//// Test chain of length 3 with late-property-addition at depth 0
+function runChain_3_0(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_3_0() {
+    var obj = createTower(3);
+    assertEq(runChain_3_0(obj), NaN);
+    updateChain(obj, 0, 'foo', 9);
+    assertEq(runChain_3_0(obj), 900);
+}
+
+//// Test chain of length 3 with late-property-addition at depth 1
+function runChain_3_1(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_3_1() {
+    var obj = createTower(3);
+    assertEq(runChain_3_1(obj), NaN);
+    updateChain(obj, 1, 'foo', 9);
+    assertEq(runChain_3_1(obj), 900);
+}
+
+//// Test chain of length 3 with late-property-addition at depth 2
+function runChain_3_2(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_3_2() {
+    var obj = createTower(3);
+    assertEq(runChain_3_2(obj), NaN);
+    updateChain(obj, 2, 'foo', 9);
+    assertEq(runChain_3_2(obj), 900);
+}
+
+//// Test chain of length 3 with late-property-addition at depth 3
+function runChain_3_3(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_3_3() {
+    var obj = createTower(3);
+    assertEq(runChain_3_3(obj), NaN);
+    updateChain(obj, 3, 'foo', 9);
+    assertEq(runChain_3_3(obj), 900);
+}
+
+//// Test chain of length 4 with late-property-addition at depth 0
+function runChain_4_0(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_4_0() {
+    var obj = createTower(4);
+    assertEq(runChain_4_0(obj), NaN);
+    updateChain(obj, 0, 'foo', 9);
+    assertEq(runChain_4_0(obj), 900);
+}
+
+//// Test chain of length 4 with late-property-addition at depth 1
+function runChain_4_1(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_4_1() {
+    var obj = createTower(4);
+    assertEq(runChain_4_1(obj), NaN);
+    updateChain(obj, 1, 'foo', 9);
+    assertEq(runChain_4_1(obj), 900);
+}
+
+//// Test chain of length 4 with late-property-addition at depth 2
+function runChain_4_2(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_4_2() {
+    var obj = createTower(4);
+    assertEq(runChain_4_2(obj), NaN);
+    updateChain(obj, 2, 'foo', 9);
+    assertEq(runChain_4_2(obj), 900);
+}
+
+//// Test chain of length 4 with late-property-addition at depth 3
+function runChain_4_3(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_4_3() {
+    var obj = createTower(4);
+    assertEq(runChain_4_3(obj), NaN);
+    updateChain(obj, 3, 'foo', 9);
+    assertEq(runChain_4_3(obj), 900);
+}
+
+//// Test chain of length 4 with late-property-addition at depth 4
+function runChain_4_4(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_4_4() {
+    var obj = createTower(4);
+    assertEq(runChain_4_4(obj), NaN);
+    updateChain(obj, 4, 'foo', 9);
+    assertEq(runChain_4_4(obj), 900);
+}
+
+//// Test chain of length 5 with late-property-addition at depth 0
+function runChain_5_0(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_5_0() {
+    var obj = createTower(5);
+    assertEq(runChain_5_0(obj), NaN);
+    updateChain(obj, 0, 'foo', 9);
+    assertEq(runChain_5_0(obj), 900);
+}
+
+//// Test chain of length 5 with late-property-addition at depth 1
+function runChain_5_1(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_5_1() {
+    var obj = createTower(5);
+    assertEq(runChain_5_1(obj), NaN);
+    updateChain(obj, 1, 'foo', 9);
+    assertEq(runChain_5_1(obj), 900);
+}
+
+//// Test chain of length 5 with late-property-addition at depth 2
+function runChain_5_2(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_5_2() {
+    var obj = createTower(5);
+    assertEq(runChain_5_2(obj), NaN);
+    updateChain(obj, 2, 'foo', 9);
+    assertEq(runChain_5_2(obj), 900);
+}
+
+//// Test chain of length 5 with late-property-addition at depth 3
+function runChain_5_3(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_5_3() {
+    var obj = createTower(5);
+    assertEq(runChain_5_3(obj), NaN);
+    updateChain(obj, 3, 'foo', 9);
+    assertEq(runChain_5_3(obj), 900);
+}
+
+//// Test chain of length 5 with late-property-addition at depth 4
+function runChain_5_4(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_5_4() {
+    var obj = createTower(5);
+    assertEq(runChain_5_4(obj), NaN);
+    updateChain(obj, 4, 'foo', 9);
+    assertEq(runChain_5_4(obj), 900);
+}
+
+//// Test chain of length 5 with late-property-addition at depth 5
+function runChain_5_5(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_5_5() {
+    var obj = createTower(5);
+    assertEq(runChain_5_5(obj), NaN);
+    updateChain(obj, 5, 'foo', 9);
+    assertEq(runChain_5_5(obj), 900);
+}
+
+//// Test chain of length 6 with late-property-addition at depth 0
+function runChain_6_0(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_6_0() {
+    var obj = createTower(6);
+    assertEq(runChain_6_0(obj), NaN);
+    updateChain(obj, 0, 'foo', 9);
+    assertEq(runChain_6_0(obj), 900);
+}
+
+//// Test chain of length 6 with late-property-addition at depth 1
+function runChain_6_1(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_6_1() {
+    var obj = createTower(6);
+    assertEq(runChain_6_1(obj), NaN);
+    updateChain(obj, 1, 'foo', 9);
+    assertEq(runChain_6_1(obj), 900);
+}
+
+//// Test chain of length 6 with late-property-addition at depth 2
+function runChain_6_2(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_6_2() {
+    var obj = createTower(6);
+    assertEq(runChain_6_2(obj), NaN);
+    updateChain(obj, 2, 'foo', 9);
+    assertEq(runChain_6_2(obj), 900);
+}
+
+//// Test chain of length 6 with late-property-addition at depth 3
+function runChain_6_3(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_6_3() {
+    var obj = createTower(6);
+    assertEq(runChain_6_3(obj), NaN);
+    updateChain(obj, 3, 'foo', 9);
+    assertEq(runChain_6_3(obj), 900);
+}
+
+//// Test chain of length 6 with late-property-addition at depth 4
+function runChain_6_4(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_6_4() {
+    var obj = createTower(6);
+    assertEq(runChain_6_4(obj), NaN);
+    updateChain(obj, 4, 'foo', 9);
+    assertEq(runChain_6_4(obj), 900);
+}
+
+//// Test chain of length 6 with late-property-addition at depth 5
+function runChain_6_5(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_6_5() {
+    var obj = createTower(6);
+    assertEq(runChain_6_5(obj), NaN);
+    updateChain(obj, 5, 'foo', 9);
+    assertEq(runChain_6_5(obj), 900);
+}
+
+//// Test chain of length 6 with late-property-addition at depth 6
+function runChain_6_6(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_6_6() {
+    var obj = createTower(6);
+    assertEq(runChain_6_6(obj), NaN);
+    updateChain(obj, 6, 'foo', 9);
+    assertEq(runChain_6_6(obj), 900);
+}
+
+//// Test chain of length 7 with late-property-addition at depth 0
+function runChain_7_0(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_7_0() {
+    var obj = createTower(7);
+    assertEq(runChain_7_0(obj), NaN);
+    updateChain(obj, 0, 'foo', 9);
+    assertEq(runChain_7_0(obj), 900);
+}
+
+//// Test chain of length 7 with late-property-addition at depth 1
+function runChain_7_1(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_7_1() {
+    var obj = createTower(7);
+    assertEq(runChain_7_1(obj), NaN);
+    updateChain(obj, 1, 'foo', 9);
+    assertEq(runChain_7_1(obj), 900);
+}
+
+//// Test chain of length 7 with late-property-addition at depth 2
+function runChain_7_2(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_7_2() {
+    var obj = createTower(7);
+    assertEq(runChain_7_2(obj), NaN);
+    updateChain(obj, 2, 'foo', 9);
+    assertEq(runChain_7_2(obj), 900);
+}
+
+//// Test chain of length 7 with late-property-addition at depth 3
+function runChain_7_3(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_7_3() {
+    var obj = createTower(7);
+    assertEq(runChain_7_3(obj), NaN);
+    updateChain(obj, 3, 'foo', 9);
+    assertEq(runChain_7_3(obj), 900);
+}
+
+//// Test chain of length 7 with late-property-addition at depth 4
+function runChain_7_4(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_7_4() {
+    var obj = createTower(7);
+    assertEq(runChain_7_4(obj), NaN);
+    updateChain(obj, 4, 'foo', 9);
+    assertEq(runChain_7_4(obj), 900);
+}
+
+//// Test chain of length 7 with late-property-addition at depth 5
+function runChain_7_5(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_7_5() {
+    var obj = createTower(7);
+    assertEq(runChain_7_5(obj), NaN);
+    updateChain(obj, 5, 'foo', 9);
+    assertEq(runChain_7_5(obj), 900);
+}
+
+//// Test chain of length 7 with late-property-addition at depth 6
+function runChain_7_6(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_7_6() {
+    var obj = createTower(7);
+    assertEq(runChain_7_6(obj), NaN);
+    updateChain(obj, 6, 'foo', 9);
+    assertEq(runChain_7_6(obj), 900);
+}
+
+//// Test chain of length 7 with late-property-addition at depth 7
+function runChain_7_7(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_7_7() {
+    var obj = createTower(7);
+    assertEq(runChain_7_7(obj), NaN);
+    updateChain(obj, 7, 'foo', 9);
+    assertEq(runChain_7_7(obj), 900);
+}
+
+//// Test chain of length 8 with late-property-addition at depth 0
+function runChain_8_0(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_8_0() {
+    var obj = createTower(8);
+    assertEq(runChain_8_0(obj), NaN);
+    updateChain(obj, 0, 'foo', 9);
+    assertEq(runChain_8_0(obj), 900);
+}
+
+//// Test chain of length 8 with late-property-addition at depth 1
+function runChain_8_1(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_8_1() {
+    var obj = createTower(8);
+    assertEq(runChain_8_1(obj), NaN);
+    updateChain(obj, 1, 'foo', 9);
+    assertEq(runChain_8_1(obj), 900);
+}
+
+//// Test chain of length 8 with late-property-addition at depth 2
+function runChain_8_2(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_8_2() {
+    var obj = createTower(8);
+    assertEq(runChain_8_2(obj), NaN);
+    updateChain(obj, 2, 'foo', 9);
+    assertEq(runChain_8_2(obj), 900);
+}
+
+//// Test chain of length 8 with late-property-addition at depth 3
+function runChain_8_3(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_8_3() {
+    var obj = createTower(8);
+    assertEq(runChain_8_3(obj), NaN);
+    updateChain(obj, 3, 'foo', 9);
+    assertEq(runChain_8_3(obj), 900);
+}
+
+//// Test chain of length 8 with late-property-addition at depth 4
+function runChain_8_4(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_8_4() {
+    var obj = createTower(8);
+    assertEq(runChain_8_4(obj), NaN);
+    updateChain(obj, 4, 'foo', 9);
+    assertEq(runChain_8_4(obj), 900);
+}
+
+//// Test chain of length 8 with late-property-addition at depth 5
+function runChain_8_5(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_8_5() {
+    var obj = createTower(8);
+    assertEq(runChain_8_5(obj), NaN);
+    updateChain(obj, 5, 'foo', 9);
+    assertEq(runChain_8_5(obj), 900);
+}
+
+//// Test chain of length 8 with late-property-addition at depth 6
+function runChain_8_6(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_8_6() {
+    var obj = createTower(8);
+    assertEq(runChain_8_6(obj), NaN);
+    updateChain(obj, 6, 'foo', 9);
+    assertEq(runChain_8_6(obj), 900);
+}
+
+//// Test chain of length 8 with late-property-addition at depth 7
+function runChain_8_7(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_8_7() {
+    var obj = createTower(8);
+    assertEq(runChain_8_7(obj), NaN);
+    updateChain(obj, 7, 'foo', 9);
+    assertEq(runChain_8_7(obj), 900);
+}
+
+//// Test chain of length 8 with late-property-addition at depth 8
+function runChain_8_8(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_8_8() {
+    var obj = createTower(8);
+    assertEq(runChain_8_8(obj), NaN);
+    updateChain(obj, 8, 'foo', 9);
+    assertEq(runChain_8_8(obj), 900);
+}
+
+//// Test chain of length 9 with late-property-addition at depth 0
+function runChain_9_0(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_9_0() {
+    var obj = createTower(9);
+    assertEq(runChain_9_0(obj), NaN);
+    updateChain(obj, 0, 'foo', 9);
+    assertEq(runChain_9_0(obj), 900);
+}
+
+//// Test chain of length 9 with late-property-addition at depth 1
+function runChain_9_1(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_9_1() {
+    var obj = createTower(9);
+    assertEq(runChain_9_1(obj), NaN);
+    updateChain(obj, 1, 'foo', 9);
+    assertEq(runChain_9_1(obj), 900);
+}
+
+//// Test chain of length 9 with late-property-addition at depth 2
+function runChain_9_2(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_9_2() {
+    var obj = createTower(9);
+    assertEq(runChain_9_2(obj), NaN);
+    updateChain(obj, 2, 'foo', 9);
+    assertEq(runChain_9_2(obj), 900);
+}
+
+//// Test chain of length 9 with late-property-addition at depth 3
+function runChain_9_3(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_9_3() {
+    var obj = createTower(9);
+    assertEq(runChain_9_3(obj), NaN);
+    updateChain(obj, 3, 'foo', 9);
+    assertEq(runChain_9_3(obj), 900);
+}
+
+//// Test chain of length 9 with late-property-addition at depth 4
+function runChain_9_4(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_9_4() {
+    var obj = createTower(9);
+    assertEq(runChain_9_4(obj), NaN);
+    updateChain(obj, 4, 'foo', 9);
+    assertEq(runChain_9_4(obj), 900);
+}
+
+//// Test chain of length 9 with late-property-addition at depth 5
+function runChain_9_5(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_9_5() {
+    var obj = createTower(9);
+    assertEq(runChain_9_5(obj), NaN);
+    updateChain(obj, 5, 'foo', 9);
+    assertEq(runChain_9_5(obj), 900);
+}
+
+//// Test chain of length 9 with late-property-addition at depth 6
+function runChain_9_6(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_9_6() {
+    var obj = createTower(9);
+    assertEq(runChain_9_6(obj), NaN);
+    updateChain(obj, 6, 'foo', 9);
+    assertEq(runChain_9_6(obj), 900);
+}
+
+//// Test chain of length 9 with late-property-addition at depth 7
+function runChain_9_7(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_9_7() {
+    var obj = createTower(9);
+    assertEq(runChain_9_7(obj), NaN);
+    updateChain(obj, 7, 'foo', 9);
+    assertEq(runChain_9_7(obj), 900);
+}
+
+//// Test chain of length 9 with late-property-addition at depth 8
+function runChain_9_8(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_9_8() {
+    var obj = createTower(9);
+    assertEq(runChain_9_8(obj), NaN);
+    updateChain(obj, 8, 'foo', 9);
+    assertEq(runChain_9_8(obj), 900);
+}
+
+//// Test chain of length 9 with late-property-addition at depth 9
+function runChain_9_9(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_9_9() {
+    var obj = createTower(9);
+    assertEq(runChain_9_9(obj), NaN);
+    updateChain(obj, 9, 'foo', 9);
+    assertEq(runChain_9_9(obj), 900);
+}
+
+//// Test chain of length 10 with late-property-addition at depth 0
+function runChain_10_0(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_10_0() {
+    var obj = createTower(10);
+    assertEq(runChain_10_0(obj), NaN);
+    updateChain(obj, 0, 'foo', 9);
+    assertEq(runChain_10_0(obj), 900);
+}
+
+//// Test chain of length 10 with late-property-addition at depth 1
+function runChain_10_1(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_10_1() {
+    var obj = createTower(10);
+    assertEq(runChain_10_1(obj), NaN);
+    updateChain(obj, 1, 'foo', 9);
+    assertEq(runChain_10_1(obj), 900);
+}
+
+//// Test chain of length 10 with late-property-addition at depth 2
+function runChain_10_2(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_10_2() {
+    var obj = createTower(10);
+    assertEq(runChain_10_2(obj), NaN);
+    updateChain(obj, 2, 'foo', 9);
+    assertEq(runChain_10_2(obj), 900);
+}
+
+//// Test chain of length 10 with late-property-addition at depth 3
+function runChain_10_3(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_10_3() {
+    var obj = createTower(10);
+    assertEq(runChain_10_3(obj), NaN);
+    updateChain(obj, 3, 'foo', 9);
+    assertEq(runChain_10_3(obj), 900);
+}
+
+//// Test chain of length 10 with late-property-addition at depth 4
+function runChain_10_4(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_10_4() {
+    var obj = createTower(10);
+    assertEq(runChain_10_4(obj), NaN);
+    updateChain(obj, 4, 'foo', 9);
+    assertEq(runChain_10_4(obj), 900);
+}
+
+//// Test chain of length 10 with late-property-addition at depth 5
+function runChain_10_5(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_10_5() {
+    var obj = createTower(10);
+    assertEq(runChain_10_5(obj), NaN);
+    updateChain(obj, 5, 'foo', 9);
+    assertEq(runChain_10_5(obj), 900);
+}
+
+//// Test chain of length 10 with late-property-addition at depth 6
+function runChain_10_6(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_10_6() {
+    var obj = createTower(10);
+    assertEq(runChain_10_6(obj), NaN);
+    updateChain(obj, 6, 'foo', 9);
+    assertEq(runChain_10_6(obj), 900);
+}
+
+//// Test chain of length 10 with late-property-addition at depth 7
+function runChain_10_7(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_10_7() {
+    var obj = createTower(10);
+    assertEq(runChain_10_7(obj), NaN);
+    updateChain(obj, 7, 'foo', 9);
+    assertEq(runChain_10_7(obj), 900);
+}
+
+//// Test chain of length 10 with late-property-addition at depth 8
+function runChain_10_8(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_10_8() {
+    var obj = createTower(10);
+    assertEq(runChain_10_8(obj), NaN);
+    updateChain(obj, 8, 'foo', 9);
+    assertEq(runChain_10_8(obj), 900);
+}
+
+//// Test chain of length 10 with late-property-addition at depth 9
+function runChain_10_9(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_10_9() {
+    var obj = createTower(10);
+    assertEq(runChain_10_9(obj), NaN);
+    updateChain(obj, 9, 'foo', 9);
+    assertEq(runChain_10_9(obj), 900);
+}
+
+//// Test chain of length 10 with late-property-addition at depth 10
+function runChain_10_10(obj) {
+    var sum = 0;
+    for (var i = 0; i < 100; i++)
+        sum += obj.foo;
+    return sum;
+}
+function testChain_10_10() {
+    var obj = createTower(10);
+    assertEq(runChain_10_10(obj), NaN);
+    updateChain(obj, 10, 'foo', 9);
+    assertEq(runChain_10_10(obj), 900);
+}
+
+
+/////////////////////////////////////////
+// RUNNER                              //
+/////////////////////////////////////////
+
+testChain_0_0();
+testChain_1_0();
+testChain_1_1();
+testChain_2_0();
+testChain_2_1();
+testChain_2_2();
+testChain_3_0();
+testChain_3_1();
+testChain_3_2();
+testChain_3_3();
+testChain_4_0();
+testChain_4_1();
+testChain_4_2();
+testChain_4_3();
+testChain_4_4();
+testChain_5_0();
+testChain_5_1();
+testChain_5_2();
+testChain_5_3();
+testChain_5_4();
+testChain_5_5();
+testChain_6_0();
+testChain_6_1();
+testChain_6_2();
+testChain_6_3();
+testChain_6_4();
+testChain_6_5();
+testChain_6_6();
+testChain_7_0();
+testChain_7_1();
+testChain_7_2();
+testChain_7_3();
+testChain_7_4();
+testChain_7_5();
+testChain_7_6();
+testChain_7_7();
+testChain_8_0();
+testChain_8_1();
+testChain_8_2();
+testChain_8_3();
+testChain_8_4();
+testChain_8_5();
+testChain_8_6();
+testChain_8_7();
+testChain_8_8();
+testChain_9_0();
+testChain_9_1();
+testChain_9_2();
+testChain_9_3();
+testChain_9_4();
+testChain_9_5();
+testChain_9_6();
+testChain_9_7();
+testChain_9_8();
+testChain_9_9();
+testChain_10_0();
+testChain_10_1();
+testChain_10_2();
+testChain_10_3();
+testChain_10_4();
+testChain_10_5();
+testChain_10_6();
+testChain_10_7();
+testChain_10_8();
+testChain_10_9();
+testChain_10_10();