tests: Update external tests (1.1.2-dev-393)

backend.native/tests/external/codegen/box/defaultArguments/function/innerExtentionFunction.kt

@@ -0,0 +1,15 @@
+class A {
+  fun Int.foo(a: Int = 1): Int {
+      return a
+  }
+
+  fun test(): String {
+      if (1.foo() != 1) return "fail"
+      if (1.foo(2) != 2) return "fail"
+      return "OK"
+  }
+}
+
+fun box(): String  {
+   return A().test()
+}