Handle accessors when generating Error.stack...

src/messages.js

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 689 matching lines @@
   var script = %FunctionGetScript(this.fun);
   if (script && script.compilation_type == COMPILATION_TYPE_EVAL)
     return "eval";
   return null;
 };
 
 CallSite.prototype.getMethodName = function () {
   // See if we can find a unique property on the receiver that holds
   // this function.
   var ownName = this.fun.name;
-  if (ownName && this.receiver && this.receiver[ownName] === this.fun)
+  if (ownName && this.receiver &&
+      (ObjectLookupGetter.call(this.receiver, ownName) === this.fun ||
+       ObjectLookupSetter.call(this.receiver, ownName) === this.fun ||
+       this.receiver[ownName] === this.fun)) {
     // To handle DontEnum properties we guess that the method has
     // the same name as the function.
     return ownName;
+  }
   var name = null;
   for (var prop in this.receiver) {
-    if (this.receiver[prop] === this.fun) {
-      // If we find more than one match bail out to avoid confusion
+    if (this.receiver.__lookupGetter__(prop) === this.fun ||
+        this.receiver.__lookupSetter__(prop) === this.fun ||
+        (!this.receiver.__lookupGetter__(prop) && this.receiver[prop] === this.fun)) {
+      // If we find more than one match bail out to avoid confusion.
       if (name)
         return null;
       name = prop;
     }
   }
   if (name)
     return name;
   return null;
 };
 
@@ skipping 245 matching lines @@
     return this.name + ": " + FormatMessage({ type: type, args: this.arguments });
   }
   var message = this.message;
   return this.name + (message ? (": " + message) : "");
 }, DONT_ENUM);
 
 
 // Boilerplate for exceptions for stack overflows. Used from
 // Top::StackOverflow().
 const kStackOverflowBoilerplate = MakeRangeError('stack_overflow', []);