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LibJS: Fix Array.prototype.indexOf fromIndex negative
If negative fromIndex considers displacement from the end of the array without decreasing 1 of de size.
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2 changed files with 4 additions and 1 deletions
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@ -321,7 +321,7 @@ Value ArrayPrototype::index_of(Interpreter& interpreter)
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if (from_index < negative_min_index)
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from_index = 0;
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else if (from_index < 0)
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from_index = (array_size - 1) + from_index;
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from_index = array_size + from_index;
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}
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auto search_element = interpreter.argument(0);
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