[Webkit-unassigned] [Bug 172658] New: Redeclaration error for let in for loop

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=172658

            Bug ID: 172658
           Summary: Redeclaration error for let in for loop
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Macintosh
                OS: All
            Status: NEW
          Severity: Blocker
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: me at boopathi.in

The following code is valid ES6 and Safari and Safari Technology Preview throws a SyntaxError: Cannot declare a let variable twice

function foo ( a ) {
  for ( let a ;; ); 
}

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