wrong failure output when compare arrays

[Graur]

When:

[] > test
  assert-that > @
    * 1 2 3
    $.equal-to
      * - 1 -2

then:

Expected: <[Lorg.eolang.Phi;@3bd323e9> equal to value but: was <[Lorg.eolang.Phi;@4ff8d125>

[Graur]

This can only be done after creating array.to-string method in EO