[Webkit-unassigned] [Bug 141670] New: Descriptor of Function.arguments is inconsistent

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=141670

            Bug ID: 141670
           Summary: Descriptor of Function.arguments is inconsistent
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: joepeck at webkit.org
                CC: mark.lam at apple.com

* SUMMARY
Descriptor of Function.arguments is inconsistent. Sometimes it is a value, sometimes it is a getter/setter. This doesn't seem expected.

  js> Object.getOwnPropertyDescriptor(function(){}, "arguments")
  < {value: null, writable: false, enumerable: false, configurable: false}

  js> Object.getOwnPropertyDescriptor(function(){}.bind(this), "arguments")
  < {get: function, set: function, enumerable: false, configurable: false}

Also, it is possible that "arguments" should not be on the instance but actually on Function.prototype.

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