Add support for arrays

[roman-khimov]

Is your feature request related to a problem? Please describe.

       {
               "constant index",
               `func F%d() int {
                       a := [2]int{}
                       a[1] = 42
                       return a[1]+0
               }
               `,
               big.NewInt(42),
       },

leads to

                                at instruction 31 (SETITEM): unhandled exception: "The value 1 is out of range."

Describe the solution you'd like

Add support for arrays and slice->array (Go 1.20) conversions.