Add reformatting test for a list comprehension
Add reformatting test for a list comprehension

sbc100/yapf,lucius-feng/yapf,sbc100/yapf,google/yapf,abduld/yapf,jamesblunt/yapf,ambv/yapf,thurday/yapf,bygloam/yapf,dmoliveira/yapf,nikolamilosevic86/yapf,wklken/yapf,elviswf/yapf,google/yapf,hayd/yapf