[Webkit-unassigned] [Bug 121541] New: Update identifier syntax to disallow U+2E2F in preparation for ES6

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=121541

           Summary: Update identifier syntax to disallow U+2E2F in
                    preparation for ES6
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
               URL: http://mathias.html5.org/tests/javascript/identifiers/
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: mathias at qiwi.be
                CC: annevk at annevk.nl


TC39 discussed http://esdiscuss.org/topic/backwards-compatibility-and-u-2e2f-in-identifier-s and concluded that we should not deviate from Unicode because we don’t want separate lists from Unicode.

That means `\u2E2F` and `ⸯ` need to throw when used as identifier.

For reference, here’s the same bug ticket for SpiderMonkey: https://bugzilla.mozilla.org/show_bug.cgi?id=917436 And for V8: https://code.google.com/p/v8/issues/detail?id=2892

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