[Webkit-unassigned] [Bug 189914] Throws incorrectly a syntax error when declaring a top level catch variable the same as a parameter

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=189914

--- Comment #3 from Simon Fraser (smfr) <simon.fraser at apple.com> ---
Created attachment 393248

  --> https://bugs.webkit.org/attachment.cgi?id=393248&action=review

Test case

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