Re-enable insertion of System.Composition DLLs
Re-enable insertion of System.Composition DLLs

We used to insert System.Composition.Convention.dll S.C.Hosting.dll, and
S.C.TypedParts.dll (even though they were in a list of assemblies to
specifically include).  When we stopped recently, we discovered that VS
was not providing them.  Resume inserting them until we figure out who is
supposed to be providing them.

OmniSharp/roslyn,dovzhikova/roslyn,huoxudong125/roslyn,OmniSharp/roslyn,YOTOV-LIMITED/roslyn,VShangxiao/roslyn,v-codeel/roslyn,brettfo/roslyn,managed-commons/roslyn,antonssonj/roslyn,aelij/roslyn,mavasani/roslyn,sharwell/roslyn,KamalRathnayake/roslyn,devharis/roslyn,SeriaWei/roslyn,jamesqo/roslyn,bbarry/roslyn,panopticoncentral/roslyn,jhendrixMSFT/roslyn,droyad/roslyn,dovzhikova/roslyn,DanielRosenwasser/roslyn,oocx/roslyn,dpoeschl/roslyn,srivatsn/roslyn,jeremymeng/roslyn,bbarry/roslyn,budcribar/roslyn,FICTURE7/roslyn,AmadeusW/roslyn,HellBrick/roslyn,xasx/roslyn,a-ctor/roslyn,Pvlerick/roslyn,xasx/roslyn,thomaslevesque/roslyn,jrharmon/roslyn,akrisiun/roslyn,ilyes14/roslyn,grianggrai/roslyn,sharadagrawal/Roslyn,KevinH-MS/roslyn,tannergooding/roslyn,pjmagee/roslyn,jasonmalinowski/roslyn,balajikris/roslyn,grianggrai/roslyn,hanu412/roslyn,kienct89/roslyn,shyamnamboodiripad/roslyn,dovzhikova/roslyn,YOTOV-LIMITED/roslyn,jaredpar/roslyn,kuhlenh/roslyn,russpowers/roslyn,sharadagrawal/Roslyn,bkoelman/roslyn,mattwar/roslyn,mseamari/Stuff,AmadeusW/roslyn,garryforreg/roslyn,agocke/roslyn,wvdd007/roslyn,tannergooding/roslyn,DanielRosenwasser/roslyn,enginekit/roslyn,Inverness/roslyn,DustinCampbell/roslyn,jkotas/roslyn,bkoelman/roslyn,RipCurrent/roslyn,danielcweber/roslyn,srivatsn/roslyn,HellBrick/roslyn,supriyantomaftuh/roslyn,garryforreg/roslyn,zmaruo/roslyn,xoofx/roslyn,rchande/roslyn,agocke/roslyn,MattWindsor91/roslyn,TyOverby/roslyn,VitalyTVA/roslyn,shyamnamboodiripad/roslyn,OmarTawfik/roslyn,jeffanders/roslyn,VSadov/roslyn,ahmedshuhel/roslyn,natidea/roslyn,aanshibudhiraja/Roslyn,antonssonj/roslyn,jrharmon/roslyn,yeaicc/roslyn,lisong521/roslyn,enginekit/roslyn,abock/roslyn,khyperia/roslyn,VPashkov/roslyn,rchande/roslyn,MichalStrehovsky/roslyn,dotnet/roslyn,ValentinRueda/roslyn,bartdesmet/roslyn,sharadagrawal/TestProject2,managed-commons/roslyn,chenxizhang/roslyn,lisong521/roslyn,jhendrixMSFT/roslyn,Giten2004/roslyn,FICTURE7/roslyn,bartdesmet/roslyn,basoundr/roslyn,natidea/roslyn,MatthieuMEZIL/roslyn,orthoxerox/roslyn,wvdd007/roslyn,tvand7093/roslyn,yeaicc/roslyn,physhi/roslyn,jcouv/roslyn,yjfxfjch/roslyn,supriyantomaftuh/roslyn,AArnott/roslyn,evilc0des/roslyn,DinoV/roslyn,nguerrera/roslyn,DustinCampbell/roslyn,tmeschter/roslyn,RipCurrent/roslyn,heejaechang/roslyn,mavasani/roslyn,REALTOBIZ/roslyn,stephentoub/roslyn,magicbing/roslyn,physhi/roslyn,VShangxiao/roslyn,cston/roslyn,tang7526/roslyn,stephentoub/roslyn,antiufo/roslyn,rgani/roslyn,dpoeschl/roslyn,Maxwe11/roslyn,KirillOsenkov/roslyn,tang7526/roslyn,jbhensley/roslyn,Shiney/roslyn,AlexisArce/roslyn,kuhlenh/roslyn,khellang/roslyn,AArnott/roslyn,eriawan/roslyn,sharadagrawal/TestProject2,taylorjonl/roslyn,Hosch250/roslyn,mgoertz-msft/roslyn,managed-commons/roslyn,supriyantomaftuh/roslyn,lorcanmooney/roslyn,REALTOBIZ/roslyn,jeremymeng/roslyn,sharadagrawal/Roslyn,jrharmon/roslyn,panopticoncentral/roslyn,kelltrick/roslyn,dotnet/roslyn,Inverness/roslyn,CaptainHayashi/roslyn,jbhensley/roslyn,tmeschter/roslyn,jmarolf/roslyn,russpowers/roslyn,furesoft/roslyn,davkean/roslyn,mseamari/Stuff,gafter/roslyn,stjeong/roslyn,taylorjonl/roslyn,yjfxfjch/roslyn,jonatassaraiva/roslyn,OmniSharp/roslyn,Hosch250/roslyn,VSadov/roslyn,swaroop-sridhar/roslyn,JakeGinnivan/roslyn,sharwell/roslyn,huoxudong125/roslyn,DinoV/roslyn,Inverness/roslyn,brettfo/roslyn,GuilhermeSa/roslyn,KiloBravoLima/roslyn,MihaMarkic/roslyn-prank,jeremymeng/roslyn,HellBrick/roslyn,tannergooding/roslyn,3F/roslyn,oberxon/roslyn,jroggeman/roslyn,tang7526/roslyn,balajikris/roslyn,RipCurrent/roslyn,jonatassaraiva/roslyn,poizan42/roslyn,DanielRosenwasser/roslyn,furesoft/roslyn,eriawan/roslyn,AlekseyTs/roslyn,mmitche/roslyn,genlu/roslyn,OmarTawfik/roslyn,amcasey/roslyn,MichalStrehovsky/roslyn,eriawan/roslyn,BugraC/roslyn,KevinRansom/roslyn,jroggeman/roslyn,cybernet14/roslyn,pjmagee/roslyn,drognanar/roslyn,mmitche/roslyn,stephentoub/roslyn,MichalStrehovsky/roslyn,ericfe-ms/roslyn,rchande/roslyn,jonatassaraiva/roslyn,OmarTawfik/roslyn,cston/roslyn,diryboy/roslyn,davkean/roslyn,MattWindsor91/roslyn,KirillOsenkov/roslyn,ValentinRueda/roslyn,3F/roslyn,tmat/roslyn,droyad/roslyn,AdamSpeight2008/roslyn-AdamSpeight2008,MattWindsor91/roslyn,EricArndt/roslyn,SeriaWei/roslyn,devharis/roslyn,TyOverby/roslyn,swaroop-sridhar/roslyn,devharis/roslyn,huoxudong125/roslyn,Shiney/roslyn,droyad/roslyn,zmaruo/roslyn,paulvanbrenk/roslyn,abock/roslyn,ericfe-ms/roslyn,stebet/roslyn,gafter/roslyn,nguerrera/roslyn,weltkante/roslyn,khellang/roslyn,nemec/roslyn,grianggrai/roslyn,rgani/roslyn,amcasey/roslyn,Giftednewt/roslyn,russpowers/roslyn,magicbing/roslyn,EricArndt/roslyn,stjeong/roslyn,CyrusNajmabadi/roslyn,ErikSchierboom/roslyn,bkoelman/roslyn,mattscheffer/roslyn,MavenRain/roslyn,budcribar/roslyn,mgoertz-msft/roslyn,krishnarajbb/roslyn,thomaslevesque/roslyn,reaction1989/roslyn,nemec/roslyn,jroggeman/roslyn,mseamari/Stuff,nagyistoce/roslyn,TyOverby/roslyn,JakeGinnivan/roslyn,mattscheffer/roslyn,davkean/roslyn,shyamnamboodiripad/roslyn,VitalyTVA/roslyn,AnthonyDGreen/roslyn,moozzyk/roslyn,sharadagrawal/TestProject2,nguerrera/roslyn,GuilhermeSa/roslyn,akrisiun/roslyn,BugraC/roslyn,antiufo/roslyn,jeffanders/roslyn,CaptainHayashi/roslyn,abock/roslyn,Maxwe11/roslyn,nagyistoce/roslyn,ValentinRueda/roslyn,AlexisArce/roslyn,swaroop-sridhar/roslyn,BugraC/roslyn,CyrusNajmabadi/roslyn,pjmagee/roslyn,orthoxerox/roslyn,zmaruo/roslyn,robinsedlaczek/roslyn,jeffanders/roslyn,garryforreg/roslyn,natgla/roslyn,natgla/roslyn,basoundr/roslyn,KevinH-MS/roslyn,VitalyTVA/roslyn,jbhensley/roslyn,AlexisArce/roslyn,leppie/roslyn,mirhagk/roslyn,pdelvo/roslyn,tvand7093/roslyn,xasx/roslyn,vcsjones/roslyn,VShangxiao/roslyn,jhendrixMSFT/roslyn,tmat/roslyn,furesoft/roslyn,krishnarajbb/roslyn,doconnell565/roslyn,moozzyk/roslyn,tsdl2013/roslyn,MatthieuMEZIL/roslyn,KiloBravoLima/roslyn,heejaechang/roslyn,genlu/roslyn,drognanar/roslyn,zooba/roslyn,oberxon/roslyn,moozzyk/roslyn,magicbing/roslyn,cston/roslyn,reaction1989/roslyn,AdamSpeight2008/roslyn-AdamSpeight2008,robinsedlaczek/roslyn,genlu/roslyn,REALTOBIZ/roslyn,mavasani/roslyn,ljw1004/roslyn,weltkante/roslyn,jasonmalinowski/roslyn,AArnott/roslyn,stjeong/roslyn,poizan42/roslyn,evilc0des/roslyn,MihaMarkic/roslyn-prank,vslsnap/roslyn,orthoxerox/roslyn,yeaicc/roslyn,MattWindsor91/roslyn,ahmedshuhel/roslyn,ErikSchierboom/roslyn,pdelvo/roslyn,DinoV/roslyn,MihaMarkic/roslyn-prank,drognanar/roslyn,pdelvo/roslyn,kelltrick/roslyn,jamesqo/roslyn,ilyes14/roslyn,nemec/roslyn,taylorjonl/roslyn,vcsjones/roslyn,AnthonyDGreen/roslyn,jaredpar/roslyn,MavenRain/roslyn,Pvlerick/roslyn,MavenRain/roslyn,AnthonyDGreen/roslyn,KashishArora/Roslyn,khellang/roslyn,DustinCampbell/roslyn,v-codeel/roslyn,thomaslevesque/roslyn,KashishArora/Roslyn,balajikris/roslyn,Shiney/roslyn,mmitche/roslyn,paladique/roslyn,zooba/roslyn,cybernet14/roslyn,KevinH-MS/roslyn,heejaechang/roslyn,ilyes14/roslyn,danielcweber/roslyn,akrisiun/roslyn,mattscheffer/roslyn,enginekit/roslyn,mattwar/roslyn,mgoertz-msft/roslyn,evilc0des/roslyn,ericfe-ms/roslyn,Giftednewt/roslyn,panopticoncentral/roslyn,xoofx/roslyn,ljw1004/roslyn,poizan42/roslyn,hanu412/roslyn,weltkante/roslyn,Giten2004/roslyn,CaptainHayashi/roslyn,VPashkov/roslyn,michalhosala/roslyn,KamalRathnayake/roslyn,natidea/roslyn,michalhosala/roslyn,xoofx/roslyn,antiufo/roslyn,jcouv/roslyn,kuhlenh/roslyn,stebet/roslyn,vcsjones/roslyn,diryboy/roslyn,aanshibudhiraja/Roslyn,chenxizhang/roslyn,robinsedlaczek/roslyn,FICTURE7/roslyn,VPashkov/roslyn,ljw1004/roslyn,vslsnap/roslyn,danielcweber/roslyn,KamalRathnayake/roslyn,mirhagk/roslyn,kelltrick/roslyn,budcribar/roslyn,Maxwe11/roslyn,zooba/roslyn,doconnell565/roslyn,oocx/roslyn,tmeschter/roslyn,Giftednewt/roslyn,AmadeusW/roslyn,aelij/roslyn,tsdl2013/roslyn,basoundr/roslyn,tsdl2013/roslyn,AdamSpeight2008/roslyn-AdamSpeight2008,khyperia/roslyn,michalhosala/roslyn,ahmedshuhel/roslyn,rgani/roslyn,krishnarajbb/roslyn,hanu412/roslyn,paulvanbrenk/roslyn,KirillOsenkov/roslyn,amcasey/roslyn,kienct89/roslyn,aanshibudhiraja/Roslyn,tvand7093/roslyn,Giten2004/roslyn,AlekseyTs/roslyn,ErikSchierboom/roslyn,paladique/roslyn,dotnet/roslyn,VSadov/roslyn,a-ctor/roslyn,diryboy/roslyn,paulvanbrenk/roslyn,Hosch250/roslyn,lorcanmooney/roslyn,MatthieuMEZIL/roslyn,kienct89/roslyn,jaredpar/roslyn,antonssonj/roslyn,AlekseyTs/roslyn,jamesqo/roslyn,stebet/roslyn,oberxon/roslyn,CyrusNajmabadi/roslyn,aelij/roslyn,physhi/roslyn,paladique/roslyn,jkotas/roslyn,jcouv/roslyn,vslsnap/roslyn,jmarolf/roslyn,dpoeschl/roslyn,natgla/roslyn,SeriaWei/roslyn,jmarolf/roslyn,lisong521/roslyn,KashishArora/Roslyn,a-ctor/roslyn,nagyistoce/roslyn,tmat/roslyn,GuilhermeSa/roslyn,wvdd007/roslyn,agocke/roslyn,JakeGinnivan/roslyn,chenxizhang/roslyn,doconnell565/roslyn,leppie/roslyn,jasonmalinowski/roslyn,KevinRansom/roslyn,lorcanmooney/roslyn,srivatsn/roslyn,khyperia/roslyn,KiloBravoLima/roslyn,brettfo/roslyn,leppie/roslyn,reaction1989/roslyn,3F/roslyn,Pvlerick/roslyn,v-codeel/roslyn,bartdesmet/roslyn,cybernet14/roslyn,mattwar/roslyn,yjfxfjch/roslyn,gafter/roslyn,jkotas/roslyn,mirhagk/roslyn,EricArndt/roslyn,KevinRansom/roslyn,YOTOV-LIMITED/roslyn,bbarry/roslyn,oocx/roslyn,sharwell/roslyn