test: add labels and breaks count tests.

js/js.translator/testData/box/inline/anonymousObjectInlineMethod.kt

@@ -1,6 +1,8 @@
 // EXPECTED_REACHABLE_NODES: 1287
 package foo
 
+// CHECK_BREAKS_COUNT: function=add count=0 TARGET_BACKENDS=JS_IR
+// CHECK_LABELS_COUNT: function=add name=$l$block count=0 TARGET_BACKENDS=JS_IR
 fun add(a: Int, b: Int): Int {
     val o = object {
         inline fun add(a: Int, b: Int): Int = a + b