[Webkit-unassigned] [Bug 208998] JavaScript identifier grammar supports unescaped astral symbols, but JSC doesn’t

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=208998

--- Comment #4 from Mathias Bynens <mathias at qiwi.be> ---
The error message mentions U+D800 which is the high surrogate half of the character in my example ('\u{102A7}' === '\uD800\uDEA7'), so I think the code paths Keith mentions are hit for each surrogate half (and surrogate code points are never valid identifier characters, hence the exception) as opposed to considering surrogate pairs where applicable.

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