Currently, internal_transactions_for_retryable_findAndModify_restart.js and internal_transactions_for_retryable_findAndModify_failover.js both take more than 20 minutes to run on evergreen since they each contain 64 test cases where each simulate a restart/failover after running a transaction; 48 of the test cases run large transactions. We should group those test cases and put them in separate jstest files.