add option warning for v-for
add option warning for v-for

shupan123/vue-fixed-type,diermengdierme/vue,karevn/vue,fergaldoyle/vue,galenyuan/vue,th0r/vue,Endika/vue,th0r/vue,karevn/vue,fergaldoyle/vue,seedalpha/vue,diermengdierme/vue,diermengdierme/vue,lepture/vue,Endika/vue,seedalpha/vue,galenyuan/vue,galenyuan/vue,karevn/vue,fergaldoyle/vue,th0r/vue,seedalpha/vue,shupan123/vue-fixed-type,shupan123/vue-fixed-type,lepture/vue,lepture/vue,Endika/vue