KT-4107 Data objects

compiler/testData/diagnostics/testsWithJvmBackend/dataObjects/customReadResolve.kt

@@ -0,0 +1,16 @@
+// !LANGUAGE: +DataObjects
+// TARGET_BACKEND: JVM_IR
+
+import java.io.Serializable
+
+data <!CONFLICTING_JVM_DECLARATIONS!>object A<!> : Serializable {
+    <!CONFLICTING_JVM_DECLARATIONS!>private fun readResolve(): Any<!> = this
+}
+
+data object B : Serializable {
+    private fun readResolve(): B = this
+}
+
+data object C {
+    private fun readResolve(): Any = this
+}