Update box tests to 1.2.0-rc-39

backend.native/tests/external/codegen/box/localClasses/closureOfInnerLocalClass.kt

@@ -1,5 +1,5 @@
 // Enable for JVM backend when KT-8120 gets fixed
-// TARGET_BACKEND: JS
+// IGNORE_BACKEND: JVM
 
 fun box(): String {
     var log = ""

backend.native/tests/external/codegen/box/localClasses/closureWithSelfInstantiation.kt

@@ -1,5 +1,5 @@
 // Enable for JVM backend when KT-8120 gets fixed
-// TARGET_BACKEND: JS
+// IGNORE_BACKEND: JVM
 
 fun box(): String {
     val capturedInConstructor = 1

backend.native/tests/external/codegen/box/localClasses/kt2873.kt

@@ -7,5 +7,5 @@ fun foo() : String {
 }
 
 fun box(): String {
-  return foo()
+    return foo()
 }