Add init test.

backend.native/tests/runtime/basic/initializers1.kt

@@ -0,0 +1,13 @@
+class Test {
+    companion object {
+        init {
+            println("Init Test")
+        }
+    }
+}
+
+fun main(args : Array<String>) {
+    val t1 = Test()
+    val t2 = Test()
+    println("Done")
+}