Add test cases for ShiftLeft
Add test cases for ShiftLeft

robert501128/libchewing,PingNote/libchewing,hiunnhue/libchewing,PeterDaveHello/libchewing,cwlin/libchewing,school510587/general_index_libchewing,mangokingTW/libchewing,czchen/libchewing,simonfork/libchewing,Chocobo1/libchewing,ShengYenPeng/libchewing,school510587/phlcw130202,PeterDaveHello/libchewing,school510587/libchewing-phoneless,czchen/libchewing,yan12125/libchewing,hiunnhue/libchewing,school510587/libchewing-phoneless,mangokingTW/libchewing,yan12125/libchewing,school510587/libchewing-phoneless,Chocobo1/libchewing,school510587/general_index_libchewing,Chocobo1/libchewing,simonfork/libchewing,dimotsai/libchewing,mangokingTW/libchewing,ShengYenPeng/libchewing,chewing/libchewing,bbyykk/libtaigi,bbyykk/libtaigi,PeterDaveHello/libchewing,school510587/general_index_libchewing,hiunnhue/libchewing,PingNote/libchewing,mangokingTW/libchewing,dimotsai/libchewing,Chocobo1/libchewing,chewing/libchewing,ShengYenPeng/libchewing,Chocobo1/libchewing,school510587/phlcw130202,robert501128/libchewing,school510587/general_index_libchewing,school510587/libchewing-phoneless,hiunnhue/libchewing,kito-cheng/libchewing,robert501128/libchewing,dimotsai/libchewing,bbyykk/libtaigi,bbyykk/libtaigi,chewing/libchewing,cwlin/libchewing,ShengYenPeng/libchewing,yan12125/libchewing,school510587/phlcw130202,kito-cheng/libchewing,cwlin/libchewing,yan12125/libchewing,PingNote/libchewing,cwlin/libchewing,czchen/libchewing,school510587/libchewing-phoneless,bbyykk/libtaigi,kito-cheng/libchewing,PeterDaveHello/libchewing,PingNote/libchewing,simonfork/libchewing,kito-cheng/libchewing,czchen/libchewing,chewing/libchewing,robert501128/libchewing,school510587/phlcw130202,school510587/phlcw130202,dimotsai/libchewing,cwlin/libchewing,hiunnhue/libchewing,simonfork/libchewing