Make following ES5 function work with undetectable parameter/target (document...

src/v8natives.js

Index: src/v8natives.js
===================================================================
--- src/v8natives.js	(revision 4250)
+++ src/v8natives.js	(working copy)
@@ -221,7 +221,7 @@
 
 // ECMA-262 - 15.2.4.6
 function ObjectIsPrototypeOf(V) {
-  if (!IS_OBJECT(V) && !IS_FUNCTION(V)) return false;
+  if (!IS_OBJECT(V) && !IS_FUNCTION(V) && !IS_UNDETECTABLE(V)) return false;
   return %IsInPrototypeChain(this, V);
 }
 
@@ -236,7 +236,7 @@
 
 // Extensions for providing property getters and setters.
 function ObjectDefineGetter(name, fun) {
-  if (this == null) {
+  if (this == null && !IS_UNDETECTABLE(this)) {
     throw new $TypeError('Object.prototype.__defineGetter__: this is Null');
   }
   if (!IS_FUNCTION(fun)) {
@@ -247,7 +247,7 @@
 
 
 function ObjectLookupGetter(name) {
-  if (this == null) {
+  if (this == null && !IS_UNDETECTABLE(this)) {
     throw new $TypeError('Object.prototype.__lookupGetter__: this is Null');
   }
   return %LookupAccessor(ToObject(this), ToString(name), GETTER);
@@ -255,7 +255,7 @@
 
 
 function ObjectDefineSetter(name, fun) {
-  if (this == null) {
+  if (this == null && !IS_UNDETECTABLE(this)) {
     throw new $TypeError('Object.prototype.__defineSetter__: this is Null');
   }
   if (!IS_FUNCTION(fun)) {
@@ -267,7 +267,7 @@
 
 
 function ObjectLookupSetter(name) {
-  if (this == null) {
+  if (this == null && !IS_UNDETECTABLE(this)) {
     throw new $TypeError('Object.prototype.__lookupSetter__: this is Null');
   }
   return %LookupAccessor(ToObject(this), ToString(name), SETTER);
@@ -275,7 +275,8 @@
 
 
 function ObjectKeys(obj) {
-  if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj))
+  if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj) &&
+      !IS_UNDETECTABLE(obj))
     throw MakeTypeError("obj_ctor_property_non_object", ["keys"]);
   return %LocalKeys(obj);
 }
@@ -594,7 +595,8 @@
 
 // ES5 section 15.2.3.2.
 function ObjectGetPrototypeOf(obj) {
-  if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj))
+  if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj) &&
+      !IS_UNDETECTABLE(obj))
     throw MakeTypeError("obj_ctor_property_non_object", ["getPrototypeOf"]);
   return obj.__proto__;
 }
@@ -602,7 +604,8 @@
 
 // ES5 section 15.2.3.3 
 function ObjectGetOwnPropertyDescriptor(obj, p) {
-  if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj))
+  if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj) &&
+      !IS_UNDETECTABLE(obj))
     throw MakeTypeError("obj_ctor_property_non_object", ["getOwnPropertyDescriptor"]);
   var desc = GetOwnProperty(obj, p);
   return FromPropertyDescriptor(desc);
@@ -611,7 +614,8 @@
 
 // ES5 section 15.2.3.4.
 function ObjectGetOwnPropertyNames(obj) {
-  if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj))
+  if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj) &&
+      !IS_UNDETECTABLE(obj))
     throw MakeTypeError("obj_ctor_property_non_object", ["getOwnPropertyNames"]);
 
   // Find all the indexed properties.
@@ -664,7 +668,8 @@
 
 // ES5 section 15.2.3.6.
 function ObjectDefineProperty(obj, p, attributes) {
-  if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj))
+  if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj) &&
+      !IS_UNDETECTABLE(obj))
     throw MakeTypeError("obj_ctor_property_non_object", ["defineProperty"]);
   var name = ToString(p);
   var desc = ToPropertyDescriptor(attributes);
@@ -675,7 +680,8 @@
 
 // ES5 section 15.2.3.7.
 function ObjectDefineProperties(obj, properties) {
- if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj))
+ if ((!IS_OBJECT(obj) || IS_NULL_OR_UNDEFINED(obj)) && !IS_FUNCTION(obj) &&
+     !IS_UNDETECTABLE(obj))
     throw MakeTypeError("obj_ctor_property_non_object", ["defineProperties"]);
   var props = ToObject(properties);
   var key_values = [];