• adamk's avatar
    Fix spread array inside array literal · 24e98281
    adamk authored
    During parsing, we now keep track of the first spread seen in an array
    literal (if any), and make use of that information when creating the
    FixedArray backing store representing the constant elements for array
    literal materialization.
    
    The old code tried to do this by setting the generated JSArray's length
    in ArrayLiteral::BuildConstantElements(), but that Array length is never
    read by the rest of the literal materialization code (it always uses
    the length of the FixedArray backing store).
    
    BUG=v8:4298
    LOG=n
    
    Review URL: https://codereview.chromium.org/1225223004
    
    Cr-Commit-Position: refs/heads/master@{#29684}
    24e98281
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