JS: move more test to box tests

js/js.translator/testData/box/labels/simpleLabel.kt

@@ -0,0 +1,35 @@
+package foo
+
+// CHECK_LABELS_COUNT: function=testBreak name=loop count=1
+// CHECK_LABELS_COUNT: function=testContinue name=loop count=1
+
+fun testBreak() {
+    var i = 0
+
+    loop@ for (j in 1..10) {
+        if (j == 5) break@loop
+
+        i = j
+    }
+
+    assertEquals(4, i, "break")
+}
+
+fun testContinue() {
+    var sum = 0
+
+    loop@ for (j in 1..5) {
+        if (j % 2 != 0) continue@loop
+
+        sum += j
+    }
+
+    assertEquals(6, sum, "continue")
+}
+
+fun box(): String {
+    testBreak()
+    testContinue()
+
+    return "OK"
+}