(fix/reuse-fragments) New test case for issue with implementing not existing classes #886

Job	Run time
Check end_to_end_test	55s
publish_dry_run	18s
Check end_to_end_test_tristate	1m 2s
Check gql_example_cli	56s
Check gql	41s
Check gql_example_cli_github	1m 15s
Check gql_build	32s
Check gql_example_build	59s
Check gql_code_builder	24s
Check gql_example_http_auth_link	30s
Check gql_exec	38s
Check gql_example_dio_link	31s
Check gql_link	30s
Check gql_dedupe_link	37s
Check gql_dio_link	1m 5s
Check gql_error_link	40s
Check gql_http_link	1m 3s
Check gql_websocket_link	1m 20s
Check gql_transform_link	42s
Check gql_tristate_value	40s
	15m 18s

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