[Webkit-unassigned] [Bug 138859] global function declaration should be throwing a TypeError if trying to override a readonly property

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=138859

Oliver Hunt <oliver at apple.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Duplicate global function   |global function declaration
                   |declaration does not throw  |should be throwing a
                   |TypeError                   |TypeError if trying to
                   |                            |override a readonly
                   |                            |property

--- Comment #1 from Oliver Hunt <oliver at apple.com> ---
Retitling to reflect actual bug - it's not due to a duplicate function. We're short circuiting creation of a new global property when we decide to shadow and that means we skip the readonly check on the existing property. Whoops.

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