{"ast_node_type":"other","tokens":[{"end":24,"kind":"keyword","start":0,"text":"assert!("}]}
                assert!(
                    self.ecx().project_fields(&unique_ptr, [FieldIdx::ZERO, FieldIdx::ONE])?;
                    phantom.layout().ty.ty_adt_def().is_some_and(|adt| adt.is_phantom_data()),