Remove preferGlobal flag
Remove preferGlobal flag

Fixes #3987.
chuckjaz/TypeScript,matthewjh/TypeScript,vilic/TypeScript,germ13/TypeScript,jwbay/TypeScript,nagyistoce/TypeScript,impinball/TypeScript,moander/TypeScript,jteplitz602/TypeScript,enginekit/TypeScript,evgrud/TypeScript,jbondc/TypeScript,matthewjh/TypeScript,rodrigues-daniel/TypeScript,yortus/TypeScript,SimoneGianni/TypeScript,fabioparra/TypeScript,progre/TypeScript,donaldpipowitch/TypeScript,kitsonk/TypeScript,SmallAiTT/TypeScript,DLehenbauer/TypeScript,microsoft/TypeScript,rgbkrk/TypeScript,kpreisser/TypeScript,jeremyepling/TypeScript,bpowers/TypeScript,kingland/TypeScript,Viromo/TypeScript,evgrud/TypeScript,RyanCavanaugh/TypeScript,RReverser/TypeScript,shanexu/TypeScript,synaptek/TypeScript,SimoneGianni/TypeScript,Viromo/TypeScript,Eyas/TypeScript,synaptek/TypeScript,vilic/TypeScript,RReverser/TypeScript,erikmcc/TypeScript,impinball/TypeScript,Eyas/TypeScript,DanielRosenwasser/TypeScript,enginekit/TypeScript,impinball/TypeScript,weswigham/TypeScript,AbubakerB/TypeScript,Viromo/TypeScript,TukekeSoft/TypeScript,DLehenbauer/TypeScript,mcanthony/TypeScript,jwbay/TypeScript,msynk/TypeScript,hoanhtien/TypeScript,samuelhorwitz/typescript,ionux/TypeScript,weswigham/TypeScript,OlegDokuka/TypeScript,SaschaNaz/TypeScript,suto/TypeScript,jbondc/TypeScript,samuelhorwitz/typescript,hoanhtien/TypeScript,kpreisser/TypeScript,minestarks/TypeScript,hoanhtien/TypeScript,Eyas/TypeScript,samuelhorwitz/typescript,jeremyepling/TypeScript,synaptek/TypeScript,zmaruo/TypeScript,suto/TypeScript,Mqgh2013/TypeScript,RReverser/TypeScript,mcanthony/TypeScript,kitsonk/TypeScript,MartyIX/TypeScript,alexeagle/TypeScript,nojvek/TypeScript,blakeembrey/TypeScript,yortus/TypeScript,basarat/TypeScript,OlegDokuka/TypeScript,thr0w/Thr0wScript,minestarks/TypeScript,fabioparra/TypeScript,SmallAiTT/TypeScript,suto/TypeScript,progre/TypeScript,sassson/TypeScript,weswigham/TypeScript,kingland/TypeScript,rgbkrk/TypeScript,SaschaNaz/TypeScript,SaschaNaz/TypeScript,JohnZ622/TypeScript,fearthecowboy/TypeScript,TukekeSoft/TypeScript,gonifade/TypeScript,fabioparra/TypeScript,AbubakerB/TypeScript,erikmcc/TypeScript,rgbkrk/TypeScript,hitesh97/TypeScript,zmaruo/TypeScript,jdavidberger/TypeScript,alexeagle/TypeScript,mszczepaniak/TypeScript,Microsoft/TypeScript,moander/TypeScript,gonifade/TypeScript,fearthecowboy/TypeScript,SimoneGianni/TypeScript,mmoskal/TypeScript,evgrud/TypeScript,DLehenbauer/TypeScript,basarat/TypeScript,shovon/TypeScript,jwbay/TypeScript,kpreisser/TypeScript,jteplitz602/TypeScript,ziacik/TypeScript,vilic/TypeScript,SmallAiTT/TypeScript,DanielRosenwasser/TypeScript,msynk/TypeScript,jwbay/TypeScript,rodrigues-daniel/TypeScript,billti/TypeScript,vilic/TypeScript,mszczepaniak/TypeScript,hitesh97/TypeScript,JohnZ622/TypeScript,TukekeSoft/TypeScript,Microsoft/TypeScript,Eyas/TypeScript,DanielRosenwasser/TypeScript,kimamula/TypeScript,blakeembrey/TypeScript,tempbottle/TypeScript,jamesrmccallum/TypeScript,germ13/TypeScript,shovon/TypeScript,shovon/TypeScript,minestarks/TypeScript,moander/TypeScript,shanexu/TypeScript,nycdotnet/TypeScript,mszczepaniak/TypeScript,DLehenbauer/TypeScript,zhengbli/TypeScript,ziacik/TypeScript,nojvek/TypeScript,DanielRosenwasser/TypeScript,nojvek/TypeScript,rodrigues-daniel/TypeScript,yortus/TypeScript,donaldpipowitch/TypeScript,mmoskal/TypeScript,basarat/TypeScript,ziacik/TypeScript,progre/TypeScript,moander/TypeScript,germ13/TypeScript,AbubakerB/TypeScript,nojvek/TypeScript,ZLJASON/TypeScript,nagyistoce/TypeScript,MartyIX/TypeScript,thr0w/Thr0wScript,evgrud/TypeScript,matthewjh/TypeScript,nagyistoce/TypeScript,mmoskal/TypeScript,billti/TypeScript,chuckjaz/TypeScript,mmoskal/TypeScript,msynk/TypeScript,thr0w/Thr0wScript,chuckjaz/TypeScript,jeremyepling/TypeScript,ionux/TypeScript,donaldpipowitch/TypeScript,blakeembrey/TypeScript,tempbottle/TypeScript,JohnZ622/TypeScript,Microsoft/TypeScript,AbubakerB/TypeScript,enginekit/TypeScript,jamesrmccallum/TypeScript,shanexu/TypeScript,sassson/TypeScript,kimamula/TypeScript,mihailik/TypeScript,zhengbli/TypeScript,mcanthony/TypeScript,erikmcc/TypeScript,donaldpipowitch/TypeScript,OlegDokuka/TypeScript,tempbottle/TypeScript,plantain-00/TypeScript,basarat/TypeScript,ZLJASON/TypeScript,Mqgh2013/TypeScript,kimamula/TypeScript,thr0w/Thr0wScript,ionux/TypeScript,samuelhorwitz/typescript,fabioparra/TypeScript,plantain-00/TypeScript,sassson/TypeScript,mihailik/TypeScript,zhengbli/TypeScript,nycdotnet/TypeScript,kitsonk/TypeScript,ZLJASON/TypeScript,rodrigues-daniel/TypeScript,fearthecowboy/TypeScript,jamesrmccallum/TypeScript,RyanCavanaugh/TypeScript,MartyIX/TypeScript,shanexu/TypeScript,mcanthony/TypeScript,bpowers/TypeScript,hitesh97/TypeScript,ionux/TypeScript,microsoft/TypeScript,Viromo/TypeScript,mihailik/TypeScript,gonifade/TypeScript,kingland/TypeScript,chuckjaz/TypeScript,RyanCavanaugh/TypeScript,JohnZ622/TypeScript,alexeagle/TypeScript,mihailik/TypeScript,jdavidberger/TypeScript,Mqgh2013/TypeScript,yortus/TypeScript,jbondc/TypeScript,microsoft/TypeScript,zmaruo/TypeScript,synapte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