[FIR-TEST] Add new testdata generated after changes in previous commit

compiler/testData/diagnostics/tests/sourceCompatibility/noDataClassInheritance.fir.kt

@@ -0,0 +1,23 @@
+// !LANGUAGE: -DataClassInheritance
+
+interface Allowed
+
+open class NotAllowed
+
+abstract data class Base(val x: Int)
+
+class Derived: Base(42)
+
+data class Nasty(val z: Int, val y: Int): Base(z)
+
+data class Complex(val y: Int): Allowed, NotAllowed()
+
+
+
+interface AbstractEqualsHashCodeToString {
+    override fun equals(other: Any?): Boolean
+    override fun hashCode(): Int
+    override fun toString(): String
+}
+
+data class ImplInterface(val s: String) : AbstractEqualsHashCodeToString