[FE 1.0] Report warning about conflict in inherited members from deserialized dependencies

^KT-51194
^KT-51223 Fixed

core/descriptors/src/org/jetbrains/kotlin/descriptors/descriptorUtil.kt

@@ -86,3 +86,5 @@ fun DeclarationDescriptor.containingPackage(): FqName? {
     require(container is PackageFragmentDescriptor?)
     return container?.fqName
 }
+
+object DeserializedDeclarationsFromSupertypeConflictDataKey : CallableDescriptor.UserDataKey<CallableMemberDescriptor>