Minor factory cleanup
Minor factory cleanup

DLehenbauer/TypeScript,DLehenbauer/TypeScript,erikmcc/TypeScript,mihailik/TypeScript,basarat/TypeScript,synaptek/TypeScript,synaptek/TypeScript,donaldpipowitch/TypeScript,SaschaNaz/TypeScript,minestarks/TypeScript,donaldpipowitch/TypeScript,Microsoft/TypeScript,kpreisser/TypeScript,alexeagle/TypeScript,minestarks/TypeScript,DLehenbauer/TypeScript,jwbay/TypeScript,kitsonk/TypeScript,kitsonk/TypeScript,Eyas/TypeScript,TukekeSoft/TypeScript,chuckjaz/TypeScript,donaldpipowitch/TypeScript,microsoft/TypeScript,weswigham/TypeScript,nojvek/TypeScript,erikmcc/TypeScript,kitsonk/TypeScript,RyanCavanaugh/TypeScript,DLehenbauer/TypeScript,RyanCavanaugh/TypeScript,minestarks/TypeScript,nojvek/TypeScript,basarat/TypeScript,synaptek/TypeScript,weswigham/TypeScript,erikmcc/TypeScript,Eyas/TypeScript,kpreisser/TypeScript,erikmcc/TypeScript,SaschaNaz/TypeScript,nojvek/TypeScript,Microsoft/TypeScript,TukekeSoft/TypeScript,alexeagle/TypeScript,chuckjaz/TypeScript,synaptek/TypeScript,mihailik/TypeScript,alexeagle/TypeScript,TukekeSoft/TypeScript,kpreisser/TypeScript,jwbay/TypeScript,mihailik/TypeScript,nojvek/TypeScript,microsoft/TypeScript,microsoft/TypeScript,jwbay/TypeScript,weswigham/TypeScript,mihailik/TypeScript,basarat/TypeScript,SaschaNaz/TypeScript,chuckjaz/TypeScript,SaschaNaz/TypeScript,donaldpipowitch/TypeScript,chuckjaz/TypeScript,Eyas/TypeScript,jwbay/TypeScript,RyanCavanaugh/TypeScript,Eyas/TypeScript,Microsoft/TypeScript,basarat/TypeScript