Only decrement activeRequestCount on SetTypings responses
Only decrement activeRequestCount on SetTypings responses

InvalidateCache responses are triggered by file watchers, rather than by
requests.

basarat/TypeScript,nojvek/TypeScript,weswigham/TypeScript,minestarks/TypeScript,kitsonk/TypeScript,basarat/TypeScript,RyanCavanaugh/TypeScript,microsoft/TypeScript,nojvek/TypeScript,kpreisser/TypeScript,minestarks/TypeScript,synaptek/TypeScript,kitsonk/TypeScript,RyanCavanaugh/TypeScript,Microsoft/TypeScript,kpreisser/TypeScript,microsoft/TypeScript,alexeagle/TypeScript,kpreisser/TypeScript,SaschaNaz/TypeScript,SaschaNaz/TypeScript,donaldpipowitch/TypeScript,basarat/TypeScript,SaschaNaz/TypeScript,kitsonk/TypeScript,Eyas/TypeScript,synaptek/TypeScript,donaldpipowitch/TypeScript,alexeagle/TypeScript,SaschaNaz/TypeScript,donaldpipowitch/TypeScript,synaptek/TypeScript,TukekeSoft/TypeScript,minestarks/TypeScript,Microsoft/TypeScript,RyanCavanaugh/TypeScript,weswigham/TypeScript,nojvek/TypeScript,Microsoft/TypeScript,basarat/TypeScript,Eyas/TypeScript,TukekeSoft/TypeScript,synaptek/TypeScript,TukekeSoft/TypeScript,donaldpipowitch/TypeScript,microsoft/TypeScript,weswigham/TypeScript,nojvek/TypeScript,Eyas/TypeScript,Eyas/TypeScript,alexeagle/TypeScript