Struct extended test fails on PHP 7.3

[BHSPitMonkey]

The assertion that fails

structures/tests/Struct/__construct_extend.phpt

Line 48 in a76a21d

Eos\DataStructures\Struct::__construct() expects parameter 1 to be array, integer given

How it fails

================================================================================
001+ Eos\DataStructures\Struct::__construct() expects parameter 1 to be array, int given
001- Eos\DataStructures\Struct::__construct() expects parameter 1 to be array, integer given
================================================================================

The cause

TypeError now reports wrong types as int and bool instead of integer and boolean, respectively.

(from https://www.php.net/manual/en/migration73.incompatible.php)