Optimize spread to not generate x.slice() when x is an array literal
Optimize spread to not generate x.slice() when x is an array literal

DanielRosenwasser/TypeScript,hitesh97/TypeScript,samuelhorwitz/typescript,weswigham/TypeScript,MartyIX/TypeScript,SimoneGianni/TypeScript,erikmcc/TypeScript,Eyas/TypeScript,evgrud/TypeScript,jamesrmccallum/TypeScript,keir-rex/TypeScript,jbondc/TypeScript,tinganho/TypeScript,hitesh97/TypeScript,kimamula/TypeScript,suto/TypeScript,DanielRosenwasser/TypeScript,chuckjaz/TypeScript,billti/TypeScript,kitsonk/TypeScript,Viromo/TypeScript,erikmcc/TypeScript,donaldpipowitch/TypeScript,msynk/TypeScript,Mqgh2013/TypeScript,kingland/TypeScript,abbasmhd/TypeScript,fabioparra/TypeScript,impinball/TypeScript,mszczepaniak/TypeScript,microsoft/TypeScript,fabioparra/TypeScript,AbubakerB/TypeScript,mihailik/TypeScript,blakeembrey/TypeScript,JohnZ622/TypeScript,jbondc/TypeScript,DLehenbauer/TypeScript,msynk/TypeScript,DLehenbauer/TypeScript,kingland/TypeScript,nojvek/TypeScript,tempbottle/TypeScript,gonifade/TypeScript,ZLJASON/TypeScript,jwbay/TypeScript,weswigham/TypeScript,JohnZ622/TypeScript,kingland/TypeScript,webhost/TypeScript,fabioparra/TypeScript,gonifade/TypeScript,nycdotnet/TypeScript,webhost/TypeScript,thr0w/Thr0wScript,synaptek/TypeScript,rgbkrk/TypeScript,SmallAiTT/TypeScript,bpowers/TypeScript,billti/TypeScript,mmoskal/TypeScript,ZLJASON/TypeScript,chocolatechipui/TypeScript,erikmcc/TypeScript,enginekit/TypeScript,zhengbli/TypeScript,sassson/TypeScript,SimoneGianni/TypeScript,samuelhorwitz/typescript,yortus/TypeScript,Microsoft/TypeScript,tempbottle/TypeScript,kitsonk/TypeScript,mmoskal/TypeScript,nojvek/TypeScript,Mqgh2013/TypeScript,mihailik/TypeScript,kumikumi/TypeScript,fearthecowboy/TypeScript,chocolatechipui/TypeScript,yazeng/TypeScript,Eyas/TypeScript,zmaruo/TypeScript,vilic/TypeScript,TukekeSoft/TypeScript,vilic/TypeScript,jbondc/TypeScript,chuckjaz/TypeScript,alexeagle/TypeScript,nagyistoce/TypeScript,Eyas/TypeScript,nycdotnet/TypeScript,samuelhorwitz/typescript,kumikumi/TypeScript,basarat/TypeScript,rgbkrk/TypeScript,plantain-00/TypeScript,SaschaNaz/TypeScript,plantain-00/TypeScript,RReverser/TypeScript,donaldpipowitch/TypeScript,tinganho/TypeScript,basarat/TypeScript,sassson/TypeScript,Microsoft/TypeScript,zhengbli/TypeScript,hitesh97/TypeScript,ionux/TypeScript,vilic/TypeScript,jamesrmccallum/TypeScript,TukekeSoft/TypeScript,HereSinceres/TypeScript,OlegDokuka/TypeScript,moander/TypeScript,synaptek/TypeScript,basarat/TypeScript,MartyIX/TypeScript,mcanthony/TypeScript,Viromo/TypeScript,pcan/TypeScript,pcan/TypeScript,minestarks/TypeScript,moander/TypeScript,chocolatechipui/TypeScript,suto/TypeScript,microsoft/TypeScript,ziacik/TypeScript,DanielRosenwasser/TypeScript,msynk/TypeScript,mcanthony/TypeScript,SaschaNaz/TypeScript,weswigham/TypeScript,evgrud/TypeScript,zmaruo/TypeScript,blakeembrey/TypeScript,nojvek/TypeScript,OlegDokuka/TypeScript,matthewjh/TypeScript,basarat/TypeScript,shovon/TypeScript,abbasmhd/TypeScript,ziacik/TypeScript,progre/TypeScript,germ13/TypeScript,thr0w/Thr0wScript,kimamula/TypeScript,Eyas/TypeScript,DLehenbauer/TypeScript,kitsonk/TypeScript,ziacik/TypeScript,jteplitz602/TypeScript,germ13/TypeScript,JohnZ622/TypeScript,kimamula/TypeScript,thr0w/Thr0wScript,evgrud/TypeScript,kpreisser/TypeScript,webhost/TypeScript,synaptek/TypeScript,yortus/TypeScript,matthewjh/TypeScript,evgrud/TypeScript,Viromo/TypeScript,ziacik/TypeScript,TukekeSoft/TypeScript,mszczepaniak/TypeScript,bpowers/TypeScript,sassson/TypeScript,SaschaNaz/TypeScript,rodrigues-daniel/TypeScript,jdavidberger/TypeScript,plantain-00/TypeScript,SmallAiTT/TypeScript,jeremyepling/TypeScript,tinganho/TypeScript,germ13/TypeScript,shovon/TypeScript,enginekit/TypeScript,ZLJASON/TypeScript,rgbkrk/TypeScript,hoanhtien/TypeScript,billti/TypeScript,mcanthony/TypeScript,enginekit/TypeScript,jwbay/TypeScript,fearthecowboy/TypeScript,MartyIX/TypeScript,jdavidberger/TypeScript,shanexu/TypeScript,kpreisser/TypeScript,rodrigues-daniel/TypeScript,OlegDokuka/TypeScript,yortus/TypeScript,jamesrmccallum/TypeScript,nycdotnet/TypeScript,RReverser/TypeScript,minestarks/TypeScript,HereSinceres/TypeScript,DanielRosenwasser/TypeScript,AbubakerB/TypeScript,impinball/TypeScript,alexeagle/TypeScript,progre/TypeScript,mmoskal/TypeScript,moander/TypeScript,hoanhtien/TypeScript,keir-rex/TypeScript,nagyistoce/TypeScript,yazeng/TypeScript,mcanthony/TypeScript,jeremyepling/TypeScript,thr0w/Thr0wScript,pcan/TypeScript,nycdotnet/TypeScript,rodrigues-daniel/TypeScript,yazeng/TypeScript,jteplitz602/TypeScript,tempbottle/TypeScript,RyanCavanaugh/TypeScript,samuelhorwitz/typescript,synaptek/TypeScript,jwbay/TypeScript,JohnZ622/TypeScript,matthewjh/TypeScript,gonifade/TypeScript,keir-rex/TypeScript,suto/TypeScript,zmaruo/TypeScript,blakeembrey/TypeScript,Mqgh2013/TypeScript,plantain-00/TypeScript,shanexu/TypeScript,RReverser/TypeScript,shiftkey/TypeScript,shanexu/TypeScript,shovon/TypeScript,nagyistoce/TypeScript,kpreisser/TypeScript,AbubakerB/TypeScript,shiftkey/TypeScript,mihailik/TypeScript,kumikumi/TypeScript,mihailik/TypeScript,RyanCavanaugh/TypeScript,SaschaNaz/TypeScript,rodrigues-daniel/TypeScript,SimoneGianni/TypeScript,jteplitz602/TypeScript,chuckjaz/TypeScript,erikmcc/TypeScript,kimamula/TypeScript,nojvek/TypeScript,mszczepaniak/TypeScript,shiftkey/TypeScript,jdavidberger/TypeScript,Microsoft/TypeScript,chuckjaz/TypeScript,minestarks/TypeScript,zhengbli/TypeScript,HereSinceres/TypeScript,RyanCavanaugh/TypeScript,donaldpipowitch/TypeScript,blakeembrey/TypeScript,jwbay/TypeScript,shanexu/TypeScript,SmallAiTT/TypeScript,AbubakerB/TypeScript,abbasmhd/TypeScript,moander/TypeScript,progre/TypeScript,alexeagle/TypeScript,donaldpipowitch/TypeScript,bpowers/TypeScript,fabioparra/TypeScript,mmoskal/TypeScript,microsoft/TypeScript,hoanhtien/TypeScript,impinball/TypeScript,ionux/TypeScript,ionux/TypeScript,fearthecowboy/TypeScript,MartyIX/TypeScript,vilic/TypeScript,Viromo/TypeScript,jeremyepling/TypeScript,DLehenbauer/TypeScript,ionux/TypeScript,yortus/TypeScript