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vabr authored
ES2017 forbids the sequence of tokens "let [" in in expression statements [1]. This CL makes ParserBase report those instances as SyntaxError. It also adds a customised error message for that, because the standard "Unexpected token" is not applicable: "let" itself is not forbidden in those context, only the sequence of "let [". [1] https://tc39.github.io/ecma262/#sec-expression-statement BUG=v8:5686 Review-Url: https://codereview.chromium.org/2694003002 Cr-Commit-Position: refs/heads/master@{#43258}
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