Add formatting test case for complex identifier lists.
Add formatting test case for complex identifier lists.

tailhook/sqlparse,AndiDog/sqlparse,AndiDog/sqlparse,tailhook/sqlparse,MariaPet/sqlparse,Yelp/sqlparse,adamgreenhall/sqlparse,actsasgeek/sqlparse,MariaPet/sqlparse,zhongdai/sqlparse,actsasgeek/sqlparse,zhongdai/sqlparse,payne/sqlparse,zhongdai/sqlparse,Yelp/sqlparse,payne/sqlparse,andialbrecht/sqlparse,benekastah/sqlparse,AndiDog/sqlparse,payne/sqlparse,actsasgeek/sqlparse,vmuriart/sqlparse,adamgreenhall/sqlparse,tailhook/sqlparse,adamgreenhall/sqlparse,Yelp/sqlparse