Make tests using CommDebugMode work for both legacy and native funcol (#120070)
We have many tests that use CommDebugMode to verify the occurrence of collectives. These tests do so by querying comm_counts with legacy funcol ops as key. For the purpose of native funcol migration, we need these tests to work for both legacy and native funcol. To avoid the need to modify all tests to accommodate the two implementations, we make CommDebugMode translate native funcol ops into legacy funcol ops until the migration finishes.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/120070
Approved by: https://github.com/wconstab, https://github.com/wanchaol
ghstack dependencies: #120042, #120043
