Use serializers defined on properties of a base class by default for extending types

[Whathecode]

When a custom serializer is defined on an overridable property of a base class, I expected this serializer to be used for extending classes which override this property as well.

Instead, when a property is overridden, the custom serializer specified using @Serializable( with = ... ) is not used.

@Serializable
abstract class Base
{
    @Serializable( with = CustomSerializer )
    abstract val willOverride: String
}

class Extends( override val willOverride: String ) : Base()

The only way I see to make this work is to specify @Serializable( with = CustomSerializer ) on willOverride of all extending classes.

[pdvrieze]

In general annotations on inherited values are ignored. This bug is broader than @Serializable, it needs additional logic in the compiler plugin.