[Parcelize] Add test for Parcelable implementation with overriden describeContents

Author: demiurg906

plugins/parcelize/parcelize-compiler/testData/box/overriddenDescribeContents.kt

@@ -0,0 +1,26 @@
+// WITH_STDLIB
+
+@file:JvmName("TestKt")
+package test
+
+import kotlinx.parcelize.*
+import android.os.Parcel
+import android.os.Parcelable
+
+annotation class SerializableLike
+
+@Parcelize @SerializableLike
+data class User(val firstName: String, val secondName: String, val age: Int) : Parcelable {
+    override fun describeContents(): Int = 1
+}
+
+fun box() = parcelTest { parcel ->
+    val user = User("John", "Smith", 20)
+    user.writeToParcel(parcel, 0)
+
+    val bytes = parcel.marshall()
+    parcel.unmarshall(bytes, 0, bytes.size)
+    parcel.setDataPosition(0)
+    val user2 = parcelableCreator<User>().createFromParcel(parcel)
+    assert(user == user2)
+}