Add support for attribute serialization.

compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/metadata/KlibMetadataSerializer.kt

@@ -56,7 +56,7 @@ abstract class KlibMetadataSerializer(
         )
         return SerializerContext(
             extension,
-            DescriptorSerializer.createTopLevel(extension)
+            DescriptorSerializer.createTopLevel(extension, project)
         )
     }