Merge pull request #10091 from tamasvajk/kotlin-data-class

Kotlin: Identify data classes during extraction

java/ql/lib/semmle/code/java/Type.qll

@@ -726,6 +726,13 @@ class CompanionObject extends Class {
   Field getInstance() { type_companion_object(_, result, this) }
 }
 
+/**
+ * A Kotlin data class declaration.
+ */
+class DataClass extends Class {
+  DataClass() { ktDataClasses(this) }
+}
+
 /**
  * A record declaration.
  */