Fix test to use lexer. instead of parser.
Fix test to use lexer. instead of parser.

cowlicks/datashape,llllllllll/datashape,quantopian/datashape,ContinuumIO/datashape,FrancescAlted/datashape,llllllllll/datashape,ContinuumIO/datashape,FrancescAlted/datashape,cpcloud/datashape,aterrel/datashape,cowlicks/datashape,cpcloud/datashape,blaze/datashape,blaze/datashape,aterrel/datashape,quantopian/datashape