[split] clean up equals and hashCode for Time and Duration
[split] clean up equals and hashCode for Time and Duration

RB_ID=83960

stremlenye/util,tdyas/util,cogitate/twitter-util-uuid,travisbrown/util,RUNDSP/util,hydro2k/util,stremlenye/util,hydro2k/util,tenghuihua/util,cogitate/twitter-util-uuid,tenghuihua/util,BuoyantIO/twitter-util,edombowsky/util,tdyas/util,nkhuyu/util,slackhappy/util,slackhappy/util,LitmusHealth/twitter-utils,edombowsky/util,slackhappy/util,tdyas/util,tdyas/util,mosesn/util,luciferous/util,Jiri-Kremser/util,cogitate/twitter-util-uuid,wuqiangxjtu/util,edombowsky/util,mosesn/util,luciferous/util,BuoyantIO/twitter-util,Jiri-Kremser/util,RUNDSP/util,wuqiangxjtu/util,stremlenye/util,BuoyantIO/twitter-util,wuqiangxjtu/util,wuqiangxjtu/util,twitter/util,LitmusHealth/twitter-utils,luciferous/util,stremlenye/util,folone/util,travisbrown/util,twitter/util,travisbrown/util,Jiri-Kremser/util,Jiri-Kremser/util,RUNDSP/util,LitmusHealth/twitter-utils,folone/util,tenghuihua/util,folone/util,hydro2k/util,cogitate/twitter-util-uuid,folone/util,nkhuyu/util,mosesn/util,nkhuyu/util,edombowsky/util,travisbrown/util,RUNDSP/util,luciferous/util,slackhappy/util,nkhuyu/util,BuoyantIO/twitter-util,LitmusHealth/twitter-utils,tenghuihua/util,twitter/util,hydro2k/util