presto-parser/src/main/java/io/prestosql/sql/tree/NodeLocation.java/NodeLocation/equals
class NodeLocation:    @Override
    public boolean equals(Object o)
    {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        NodeLocation that = (NodeLocation) o;
        return line == that.line &&
                charPositionInLine == that.charPositionInLine;
    }