[stdlib][swift-3-indexing-model] fixing CollectionDiagnostics test
[stdlib][swift-3-indexing-model] fixing CollectionDiagnostics test

frootloops/swift,return/swift,shahmishal/swift,felix91gr/swift,deyton/swift,gottesmm/swift,allevato/swift,calebd/swift,harlanhaskins/swift,sschiau/swift,milseman/swift,xedin/swift,CodaFi/swift,devincoughlin/swift,danielmartin/swift,manavgabhawala/swift,devincoughlin/swift,swiftix/swift,stephentyrone/swift,dreamsxin/swift,frootloops/swift,jopamer/swift,OscarSwanros/swift,hughbe/swift,parkera/swift,alblue/swift,JGiola/swift,roambotics/swift,lorentey/swift,shajrawi/swift,sschiau/swift,roambotics/swift,swiftix/swift,ben-ng/swift,nathawes/swift,atrick/swift,practicalswift/swift,amraboelela/swift,codestergit/swift,parkera/swift,JaSpa/swift,deyton/swift,CodaFi/swift,CodaFi/swift,hooman/swift,rudkx/swift,tinysun212/swift-windows,OscarSwanros/swift,therealbnut/swift,austinzheng/swift,allevato/swift,milseman/swift,karwa/swift,ahoppen/swift,return/swift,modocache/swift,ben-ng/swift,return/swift,hughbe/swift,danielmartin/swift,aschwaighofer/swift,ahoppen/swift,shajrawi/swift,gmilos/swift,gottesmm/swift,russbishop/swift,tinysun212/swift-windows,tkremenek/swift,benlangmuir/swift,hooman/swift,alblue/swift,JGiola/swift,shajrawi/swift,xedin/swift,xedin/swift,brentdax/swift,xwu/swift,russbishop/swift,IngmarStein/swift,JGiola/swift,arvedviehweger/swift,nathawes/swift,jtbandes/swift,nathawes/swift,allevato/swift,uasys/swift,gottesmm/swift,austinzheng/swift,JaSpa/swift,milseman/swift,gmilos/swift,kstaring/swift,tardieu/swift,IngmarStein/swift,xwu/swift,glessard/swift,IngmarStein/swift,therealbnut/swift,kperryua/swift,shahmishal/swift,practicalswift/swift,karwa/swift,tkremenek/swift,IngmarStein/swift,huonw/swift,benlangmuir/swift,parkera/swift,calebd/swift,tinysun212/swift-windows,kstaring/swift,sschiau/swift,manavgabhawala/swift,tjw/swift,modocache/swift,danielmartin/swift,shahmishal/swift,practicalswift/swift,alblue/swift,return/swift,atrick/swift,harlanhaskins/swift,alblue/swift,djwbrown/swift,glessard/swift,benlangmuir/swift,Jnosh/swift,ken0nek/swift,tardieu/swift,jtbandes/swift,tardieu/swift,ken0nek/swift,brentdax/swift,karwa/swift,austinzheng/swift,codestergit/swift,swiftix/swift,gottesmm/swift,kperryua/swift,shahmishal/swift,gribozavr/swift,karwa/swift,tinysun212/swift-windows,stephentyrone/swift,devincoughlin/swift,IngmarStein/swift,russbishop/swift,bitjammer/swift,zisko/swift,xwu/swift,gribozavr/swift,tjw/swift,practicalswift/swift,gregomni/swift,JGiola/swift,rudkx/swift,hughbe/swift,xedin/swift,arvedviehweger/swift,harlanhaskins/swift,frootloops/swift,arvedviehweger/swift,stephentyrone/swift,stephentyrone/swift,airspeedswift/swift,deyton/swift,Jnosh/swift,parkera/swift,xedin/swift,zisko/swift,lorentey/swift,kstaring/swift,zisko/swift,tjw/swift,jmgc/swift,ken0nek/swift,aschwaighofer/swift,jopamer/swift,gregomni/swift,modocache/swift,gmilos/swift,practicalswift/swift,lorentey/swift,manavgabhawala/swift,stephentyrone/swift,devincoughlin/swift,glessard/swift,tardieu/swift,austinzheng/swift,devincoughlin/swift,glessard/swift,devincoughlin/swift,OscarSwanros/swift,jtbandes/swift,karwa/swift,Jnosh/swift,calebd/swift,ken0nek/swift,natecook1000/swift,ken0nek/swift,JaSpa/swift,tardieu/swift,OscarSwanros/swift,modocache/swift,hughbe/swift,danielmartin/swift,therealbnut/swift,lorentey/swift,ken0nek/swift,frootloops/swift,djwbrown/swift,codestergit/swift,alblue/swift,jopamer/swift,sschiau/swift,CodaFi/swift,nathawes/swift,tinysun212/swift-windows,tjw/swift,jckarter/swift,gregomni/swift,rudkx/swift,jopamer/swift,tkremenek/swift,gmilos/swift,milseman/swift,roambotics/swift,JaSpa/swift,sschiau/swift,hooman/swift,gribozavr/swift,tkremenek/swift,calebd/swift,zisko/swift,tinysun212/swift-windows,kperryua/swift,natecook1000/swift,xwu/swift,ben-ng/swift,jtbandes/swift,CodaFi/swift,natecook1000/swift,hughbe/swift,gottesmm/swift,roambotics/swift,felix91gr/swift,djwbrown/swift,aschwaighofer/swift,parkera/swift,practicalswift/swift,nathawes/swift,jopamer/swift,jtbandes/swift,bitjammer/swift,apple/swift,airspeedswift/swift,calebd/swift,lorentey/swift,karwa/swift,aschwaighofer/swift,harlanhaskins/swift,swiftix/swift,milseman/swift,russbishop/swift,uasys/swift,felix91gr/swift,jckarter/swift,bitjammer/swift,airspeedswift/swift,lorentey/swift,austinzheng/swift,xedin/swift,ben-ng/swift,benlangmuir/swift,jckarter/swift,stephentyrone/swift,huonw/swift,xwu/swift,russbishop/swift,shahmishal/swift,gregomni/swift,jtbandes/swift,shajrawi/swift,parkera/swift,tardieu/swift,jmgc/swift,frootloops/swift,russbishop/swift,kstaring/swift,uasys/swift,arvedviehweger/swift,arvedviehweger/swift,arvedviehweger/swift,glessard/swift,codestergit/swift,karwa/swift,JGiola/swift,IngmarStein/swift,codestergit/swift,brentdax/swift,Jnosh/swift,ben-ng/swift,atrick/swift,JaSpa/swift,arvedviehweger/swift,airspeedswift/swift,JaSpa/swift,harlanhaskins/swift,harlanhaskins/swift,kperryua/swift,airspeedswift/swift,gmilos/swift,deyton/swift,shajrawi/swift,tardieu/swift,kstaring/swift,danielmartin/swift,deyton/swift,glessard/swift,amraboelela/swift,amraboelela/swift,brentdax/swift,gottes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