[Webkit-unassigned] [Bug 153310] New: [ES6] Several lexical binding causes SyntaxError if there is duplicate lexical/variable decl under targetting block

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=153310

            Bug ID: 153310
           Summary: [ES6] Several lexical binding causes SyntaxError if
                    there is duplicate lexical/variable decl under
                    targetting block
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: utatane.tea at gmail.com

http://ecma-international.org/ecma-262/6.0/#sec-for-statement-static-semantics-early-errors

for (let v = 42;;) {
    var v = 44;
}

should throw SyntaxError

http://ecma-international.org/ecma-262/6.0/#sec-try-statement-static-semantics-early-errors

try {
} catch (error) {
     let error = 42;
}

should throw SyntaxError


try {
} catch (error) {
     var error = 42;
}

should throw SyntaxError

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