Improve unification by moving more logic to getIndexedAccessType
Improve unification by moving more logic to getIndexedAccessType

nojvek/TypeScript,DLehenbauer/TypeScript,erikmcc/TypeScript,jwbay/TypeScript,donaldpipowitch/TypeScript,kitsonk/TypeScript,kpreisser/TypeScript,basarat/TypeScript,basarat/TypeScript,mihailik/TypeScript,donaldpipowitch/TypeScript,basarat/TypeScript,erikmcc/TypeScript,Microsoft/TypeScript,synaptek/TypeScript,nojvek/TypeScript,Eyas/TypeScript,Eyas/TypeScript,Eyas/TypeScript,microsoft/TypeScript,DLehenbauer/TypeScript,synaptek/TypeScript,basarat/TypeScript,minestarks/TypeScript,kpreisser/TypeScript,mihailik/TypeScript,DLehenbauer/TypeScript,kitsonk/TypeScript,thr0w/Thr0wScript,kitsonk/TypeScript,weswigham/TypeScript,erikmcc/TypeScript,SaschaNaz/TypeScript,thr0w/Thr0wScript,chuckjaz/TypeScript,TukekeSoft/TypeScript,chuckjaz/TypeScript,TukekeSoft/TypeScript,chuckjaz/TypeScript,SaschaNaz/TypeScript,microsoft/TypeScript,erikmcc/TypeScript,DLehenbauer/TypeScript,TukekeSoft/TypeScript,alexeagle/TypeScript,weswigham/TypeScript,Eyas/TypeScript,RyanCavanaugh/TypeScript,SaschaNaz/TypeScript,thr0w/Thr0wScript,nojvek/TypeScript,Microsoft/TypeScript,donaldpipowitch/TypeScript,jwbay/TypeScript,weswigham/TypeScript,chuckjaz/TypeScript,minestarks/TypeScript,nojvek/TypeScript,alexeagle/TypeScript,thr0w/Thr0wScript,jwbay/TypeScript,minestarks/TypeScript,synaptek/TypeScript,jwbay/TypeScript,SaschaNaz/TypeScript,donaldpipowitch/TypeScript,synaptek/TypeScript,microsoft/TypeScript,kpreisser/TypeScript,alexeagle/TypeScript,mihailik/TypeScript,RyanCavanaugh/TypeScript,mihailik/TypeScript,RyanCavanaugh/TypeScript,Microsoft/TypeScript