test: add labels and breaks count tests.

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

@@ -7,6 +7,8 @@ inline fun run(func: () -> Int): Int {
     return func()
 }
 
+// CHECK_BREAKS_COUNT: function=bar count=0 TARGET_BACKENDS=JS_IR
+// CHECK_LABELS_COUNT: function=bar name=$l$block count=0 TARGET_BACKENDS=JS_IR
 fun bar(p: IntPair): Int {
     var f = { -> p.fst++ }
     var get0 = f