Reorganize file utils (#16264)

* Split file_utils in several submodules

* Fixes

* Add back more objects

* More fixes

* Who exactly decided to import that from there?

* Second suggestion to code with code review

* Revert wront move

* Fix imports

* Adapt all imports

* Adapt all imports everywhere

* Revert this import, will fix in a separate commit

examples/flax/language-modeling/run_clm_flax.py

@@ -57,8 +57,8 @@ from transformers import (
     is_tensorboard_available,
     set_seed,
 )
-from transformers.file_utils import get_full_repo_name
 from transformers.testing_utils import CaptureLogger
+from transformers.utils import get_full_repo_name
 
 
 logger = logging.getLogger(__name__)

examples/flax/language-modeling/run_mlm_flax.py

@@ -58,7 +58,7 @@ from transformers import (
     is_tensorboard_available,
     set_seed,
 )
-from transformers.file_utils import get_full_repo_name
+from transformers.utils import get_full_repo_name
 
 
 MODEL_CONFIG_CLASSES = list(FLAX_MODEL_FOR_MASKED_LM_MAPPING.keys())

examples/flax/language-modeling/run_t5_mlm_flax.py

@@ -56,8 +56,8 @@ from transformers import (
     is_tensorboard_available,
     set_seed,
 )
-from transformers.file_utils import get_full_repo_name
 from transformers.models.t5.modeling_flax_t5 import shift_tokens_right
+from transformers.utils import get_full_repo_name
 
 
 MODEL_CONFIG_CLASSES = list(FLAX_MODEL_FOR_MASKED_LM_MAPPING.keys())