presto-spi/src/main/java/io/prestosql/spi/block/IntArrayBlock.java/IntArrayBlock/toString
class IntArrayBlock:    @Override
    public String toString()
    {
        StringBuilder sb = new StringBuilder("IntArrayBlock{");
        sb.append("positionCount=").append(getPositionCount());
        sb.append('}');
        return sb.toString();
    }