K2: Added test for data class metadata

#KT-57622 Fixed

compiler/testData/codegen/box/dataClasses/fromOtherModule.kt

@@ -0,0 +1,19 @@
+// MODULE: lib
+// FILE: lib.kt
+
+data class D(val x: Int)
+
+// MODULE: main(lib)
+// FILE: main.kt
+
+fun box() : String {
+    val a = D(1)
+    val b = D(2)
+    val c = D(1)
+
+    if (a == b) return "FAIL 1"
+    if (a != c) return "FAIL 2"
+    if (!a.equals(c)) return "FAIL 3"
+    if (a.hashCode() != c.hashCode()) return "FAIL 4"
+    return "OK"
+}