[parser] make parse_test262 print all test names in verbose mode
[parser] make parse_test262 print all test names in verbose mode

Summary:
in verbose mode, print the name of the test before running it. in
non-verbose mode, only print the name of the test if it fails.

Reviewed By: avikchaudhuri

Differential Revision: D5690759

fbshipit-source-id: 6fc2c9d371c9ab5f3e545225dc99ab51614a4cc2

AgentME/flow,facebook/flow,ylu1317/flow,jamesgpearce/flow,JonathanUsername/flow,samwgoldman/flow,jamesgpearce/flow,gabelevi/flow,MichaelDeBoey/flow,MichaelDeBoey/flow,JonathanUsername/flow,popham/flow,popham/flow,nmote/flow,jamesgpearce/flow,AgentME/flow,claudiopro/flow,TiddoLangerak/flow,mroch/flow,claudiopro/flow,samwgoldman/flow,jamesgpearce/flow,nmote/flow,samwgoldman/flow,AgentME/flow,JonathanUsername/flow,mroch/flow,claudiopro/flow,samwgoldman/flow,gabelevi/flow,nmote/flow,popham/flow,JonathanUsername/flow,samwgoldman/flow,claudiopro/flow,mroch/flow,JonathanUsername/flow,AgentME/flow,JonathanUsername/flow,TiddoLangerak/flow,facebook/flow,gabelevi/flow,ylu1317/flow,mroch/flow,ylu1317/flow,gabelevi/flow,ylu1317/flow,mroch/flow,facebook/flow,ylu1317/flow,MichaelDeBoey/flow,TiddoLangerak/flow,popham/flow,mroch/flow,TiddoLangerak/flow,MichaelDeBoey/flow,samwgoldman/flow,mroch/flow,gabelevi/flow,popham/flow,nmote/flow,JonathanUsername/flow,jamesgpearce/flow,nmote/flow,facebook/flow,MichaelDeBoey/flow,TiddoLangerak/flow,popham/flow,popham/flow,nmote/flow,AgentME/flow,facebook/flow,jamesgpearce/flow,gabelevi/flow,samwgoldman/flow,jamesgpearce/flow,facebook/flow,claudiopro/flow,nmote/flow,facebook/flow,gabelevi/flow