Fix Array.prototype.{reduce,reduceRight} to pass undefined as receiver

src/array.js

Index: src/array.js
diff --git a/src/array.js b/src/array.js
index 6cf417874da2924caf1477be658cefb408bfc3bc..0af101dedfe3864d32da1e1a5efc9695f49cde50 100644
--- a/src/array.js
+++ b/src/array.js
@@ -1004,7 +1004,7 @@ function ArrayFilter(f, receiver) {
   for (var i = 0; i < length; i++) {
     var current = this[i];
     if (!IS_UNDEFINED(current) || i in this) {
-      if (f.call(receiver, current, i, this)) {
+      if (%_CallFunction(receiver, current, i, this, f)) {

[Lasse Reichstein, 2011/06/08 18:41:42]

Does this correctly pass the global receiver to the function if "receiver" is
the undefined value?

         result[result_length++] = current;
       }
     }
@@ -1028,7 +1028,7 @@ function ArrayForEach(f, receiver) {
   for (var i = 0; i < length; i++) {
     var current = this[i];
     if (!IS_UNDEFINED(current) || i in this) {
-      f.call(receiver, current, i, this);
+      %_CallFunction(receiver, current, i, this, f);
     }
   }
 }
@@ -1051,7 +1051,7 @@ function ArraySome(f, receiver) {
   for (var i = 0; i < length; i++) {
     var current = this[i];
     if (!IS_UNDEFINED(current) || i in this) {
-      if (f.call(receiver, current, i, this)) return true;
+      if (%_CallFunction(receiver, current, i, this, f)) return true;
     }
   }
   return false;
@@ -1073,7 +1073,7 @@ function ArrayEvery(f, receiver) {
   for (var i = 0; i < length; i++) {
     var current = this[i];
     if (!IS_UNDEFINED(current) || i in this) {
-      if (!f.call(receiver, current, i, this)) return false;
+      if (!%_CallFunction(receiver, current, i, this, f)) return false;
     }
   }
   return true;
@@ -1096,7 +1096,7 @@ function ArrayMap(f, receiver) {
   for (var i = 0; i < length; i++) {
     var current = this[i];
     if (!IS_UNDEFINED(current) || i in this) {
-      accumulator[i] = f.call(receiver, current, i, this);
+      accumulator[i] = %_CallFunction(receiver, current, i, this, f);
     }
   }
   %MoveArrayContents(accumulator, result);
@@ -1252,7 +1252,7 @@ function ArrayReduce(callback, current) {
   for (; i < length; i++) {
     var element = this[i];
     if (!IS_UNDEFINED(element) || i in this) {
-      current = callback.call(null, current, element, i, this);
+      current = %_CallFunction(void 0, current, element, i, this, callback);
     }
   }
   return current;
@@ -1283,7 +1283,7 @@ function ArrayReduceRight(callback, current) {
   for (; i >= 0; i--) {
     var element = this[i];
     if (!IS_UNDEFINED(element) || i in this) {
-      current = callback.call(null, current, element, i, this);
+      current = %_CallFunction(void 0, current, element, i, this, callback);
     }
   }
   return current;