BC native tests port to Konan's TestRunner

backend.native/tests/codegen/objectExpression/1.kt

@@ -1,4 +1,8 @@
-fun main(args: Array<String>) {
+package codegen.objectExpression_1
+
+import kotlin.test.*
+
+@Test fun runTest() {
     val a = "a"
 
     val x = object {

backend.native/tests/codegen/objectExpression/2.kt

@@ -1,4 +1,8 @@
-fun main(args: Array<String>) {
+package codegen.objectExpression_2
+
+import kotlin.test.*
+
+@Test fun runTest() {
     val a = "a"
 
     val x = object {

backend.native/tests/codegen/objectExpression/3.kt

@@ -1,4 +1,8 @@
-fun main(args: Array<String>) {
+package codegen.objectExpression_3
+
+import kotlin.test.*
+
+@Test fun runTest() {
     var cnt = 0
 
     var x: Any = ""