Fix some tests (especially compile with fullgraph=True on Python<3.11) (#38319)

* fix tests

* better fix for python<3.11

* fixes

* style

tests/test_modeling_common.py

@@ -4461,6 +4461,7 @@ class ModelTesterMixin:
         del loss
 
         model = torch.compile(model, fullgraph=True, mode="reduce-overhead")
+
         # forward compilation
         set_seed(42)
         loss = model(**inputs).loss