test: refact tests to remove print dependency

Author: boriel

tests/functional/arch/zx48k/opt1_dim_arr_global.asm

@@ -3,4 +3,4 @@ DIM a(5) as UByte => {0, 1, 2, 3, 4, 5}
 DIM i as UInteger
 
 i = 3
-PRINT a(i)
+POKE 0, a(i)