Fix test that would require autoboxing.

backend.native/tests/build.gradle

@@ -209,7 +209,7 @@ task array0(type: RunKonanTest) {
 }
 
 task array1(type: RunKonanTest) {
-    goldValue = "4 2\n1-1\n69\n83\n"
+    goldValue = "4 2\n1-1\n69\n38\n"
     source = "runtime/basic/array1.kt"
 }
 

backend.native/tests/runtime/basic/array1.kt

@@ -2,7 +2,7 @@ fun main(args : Array<String>) {
     val byteArray = ByteArray(5)
     byteArray[1] = 2
     byteArray[3] = 4
-    println(byteArray[3].toString() + " "  + byteArray[1])
+    println(byteArray[3].toString() + " "  + byteArray[1].toString())
 
     val shortArray = ShortArray(2)
     shortArray[0] = -1