NamespaceComparator now serializes kind, if it's not DECLARATION.

Lots of test data changed to include members' kinds.

compiler/testData/loadKotlin/dataClass/OpenDataClass.txt

@@ -2,6 +2,6 @@ namespace test
 
 jet.data() internal open class test.DataClass : jet.Any {
     public final /*constructor*/ fun <init>(/*0*/ x: jet.String): test.DataClass
-    internal final fun component1(): jet.String
+    internal final /*synthesized*/ fun component1(): jet.String
     internal final val x: jet.String
 }