More informative error messages for non-Transferables.

Source/bindings/v8/ExceptionMessages.cpp

 /*
  * Copyright (C) 2013 Google Inc. 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
@@ skipping 40 matching lines @@
 String ExceptionMessages::failedToSet(const String& property, const String& type, const String& detail)
 {
     return "Failed to set the '" + property + "' property on '" + type + "': " + detail;
 }
 
 String ExceptionMessages::failedToDelete(const String& property, const String& type, const String& detail)
 {
     return "Failed to delete the '" + property + "' property from '" + type + "': " + detail;
 }
 
+String ExceptionMessages::notASequenceType(const String& argument)
+{
+    return argument + " argument is not an array type, nor has indexed properties.";

[Mike West, 2013/10/22 06:50:40]

"not ... nor" sounds strange. I'd still prefer "... argument is neither an array
type, nor does it have indexed properties."

[sof, 2013/10/22 16:06:56]

I changed this to "is neither an array, nor does it .."

+}
+
 String ExceptionMessages::notEnoughArguments(unsigned expected, unsigned provided)
 {
     return String::number(expected) + " argument" + (expected > 1 ? "s" : "") + " required, but only " + String::number(provided) + " present.";
 }
 
 } // namespace WebCore