[K/N][Tests] Adjust moved tests interfaceCallsNCasts..vector to new infra

^KT-61259

native/native.tests/testData/codegen/objectExpression/expr3.kt

@@ -3,24 +3,30 @@
  * that can be found in the LICENSE file.
  */
 
-package codegen.objectExpression.expr3
-
 import kotlin.test.*
 
-@Test fun runTest() {
+val sb = StringBuilder()
+
+fun box(): String {
     var cnt = 0
 
     var x: Any = ""
 
     for (i in 0 .. 1) {
-        print(x)
+        sb.appendLine(x)
         cnt++
         val y = object {
             override fun toString() = cnt.toString()
         }
         x = y
     }
-    print(x)
-}
+    sb.appendLine(x)
 
-fun print(x: Any) = println(x.toString())
+    assertEquals("""
+        
+        1
+        2
+
+    """.trimIndent(), sb.toString())
+    return "OK"
+}