data deprecations (empty constructors, non val/var arguments, vararg, superclasses) are now errors, relevant tests fixed

js/js.translator/testData/dataClass/cases/components.kt

@@ -1,6 +1,6 @@
 package foo
 
-data class Dat(val start: String, middle: String, val end: String) {
+data class Dat(val start: String, val middle: String, val end: String) {
     fun getLabel() : String {
         return start + end
     }
@@ -9,7 +9,7 @@ data class Dat(val start: String, middle: String, val end: String) {
 fun box(): String {
     val d = Dat("max", "-", "min")
     assertEquals("maxmin", d.getLabel())
-    val (p1, p2) = d
+    val (p1, p, p2) = d
     assertEquals("max", p1)
     assertEquals("min", p2)
     return "OK"