Remove 'type' and 'arguments' properties from Error object.

src/messages.js

Index: src/messages.js
diff --git a/src/messages.js b/src/messages.js
index 3d6c8ce2d88ba983e42d37c15c9e0ffcfa125e73..4762db697c4d5efa394e273b4a0880441d6144d3 100644
--- a/src/messages.js
+++ b/src/messages.js
@@ -256,8 +256,6 @@ function MakeGenericError(constructor, type, args) {
     args = [];
   }
   var e = new constructor(FormatMessage(type, args));

[Sven Panne, 2012/11/14 08:40:35]

Just drop the "var e =", it's cleaner... ;-)

-  e.type = type;
-  e.arguments = args;
   return e;
 }
 
@@ -1143,8 +1141,6 @@ function SetUpError() {
         // object. This avoids going through getters and setters defined
         // on prototype objects.
         %IgnoreAttributesAndSetProperty(this, 'stack', void 0, DONT_ENUM);
-        %IgnoreAttributesAndSetProperty(this, 'arguments', void 0, DONT_ENUM);
-        %IgnoreAttributesAndSetProperty(this, 'type', void 0, DONT_ENUM);
         if (!IS_UNDEFINED(m)) {
           %IgnoreAttributesAndSetProperty(
             this, 'message', ToString(m), DONT_ENUM);
@@ -1204,7 +1200,6 @@ function GetPropertyWithoutInvokingMonkeyGetters(error, name) {
 function ErrorToStringDetectCycle(error) {
   if (!%PushIfAbsent(visited_errors, error)) throw cyclic_error_marker;
   try {
-    var type = GetPropertyWithoutInvokingMonkeyGetters(error, "type");
     var name = GetPropertyWithoutInvokingMonkeyGetters(error, "name");
     name = IS_UNDEFINED(name) ? "Error" : TO_STRING_INLINE(name);
     var message = GetPropertyWithoutInvokingMonkeyGetters(error, "message");