Always generate ACC_SUPER flag for all classes; Fix for KT-10260: java.lang.VerifyError in Android 4.x when Instant Run is used

#KT-10260 Fixed

compiler/testData/writeFlags/class/accessFlags/mappingWhen.kt

@@ -0,0 +1,19 @@
+
+enum class BigEnum {
+    ITEM1,
+    ITEM2
+}
+
+fun bar1(x : BigEnum) : String {
+    when (x) {
+        BigEnum.ITEM1 -> return "123"
+        BigEnum.ITEM2-> return "456"
+    }
+
+    return "-1";
+
+}
+
+// TESTED_OBJECT_KIND: class
+// TESTED_OBJECTS: MappingWhenKt$WhenMappings
+// FLAGS: ACC_PUBLIC, ACC_SYNTHETIC, ACC_FINAL, ACC_SUPER