Address review: fix comment wording and extend test coverage

- Change 'may fail' to 'does not detect' (torchgen structurally cannot
  handle ListType alias annotations)
- Add split_with_sizes.default to test to document overlap with blocklist

Signed-off-by: Lidang-Jiang <lidangjiang@gmail.com>

Author: Lidang-Jiang

exir/program/_program.py

@@ -1122,9 +1122,9 @@ def keep(op):
                 )
                 return False
 
-        # Fallback: torchgen may fail to detect alias annotations on ops
-        # returning lists of tensors (e.g. split.Tensor returns Tensor(a)[]).
-        # Check op._schema.returns directly as a more reliable source.
+        # Fallback: torchgen does not detect alias annotations on ops
+        # returning lists of aliased tensors (e.g. split.Tensor returns
+        # Tensor(a)[]). Check op._schema.returns directly.
         for ret in schema.returns:
             if ret.alias_info is not None:
                 log_warning(

exir/tests/test_passes.py

@@ -957,6 +957,7 @@ def test_remove_invalid_ops_filters_aliased_list_returns(self) -> None:
             torch.ops.aten.split.Tensor,
             torch.ops.aten.chunk.default,
             torch.ops.aten.tensor_split.sections,
+            torch.ops.aten.split_with_sizes.default,
         ]
         for op in aliased_list_ops:
             result = _remove_invalid_ops_for_not_decompose([op])