stdlib: fix coding style in HashedCollections
stdlib: fix coding style in HashedCollections

Swift SVN r27735

swiftix/swift.old,MukeshKumarS/Swift,hooman/swift,jopamer/swift,return/swift,atrick/swift,manavgabhawala/swift,tjw/swift,xwu/swift,brentdax/swift,ken0nek/swift,lorentey/swift,milseman/swift,apple/swift,gribozavr/swift,felix91gr/swift,MukeshKumarS/Swift,kperryua/swift,Ivacker/swift,gmilos/swift,danielmartin/swift,xedin/swift,jtbandes/swift,dduan/swift,tkremenek/swift,kstaring/swift,arvedviehweger/swift,bitjammer/swift,shajrawi/swift,gribozavr/swift,huonw/swift,JGiola/swift,stephentyrone/swift,lorentey/swift,frootloops/swift,sdulal/swift,jmgc/swift,austinzheng/swift,shahmishal/swift,felix91gr/swift,shahmishal/swift,mightydeveloper/swift,devincoughlin/swift,lorentey/swift,jopamer/swift,arvedviehweger/swift,ahoppen/swift,jmgc/swift,Ivacker/swift,SwiftAndroid/swift,harlanhaskins/swift,allevato/swift,ken0nek/swift,johnno1962d/swift,milseman/swift,harlanhaskins/swift,glessard/swift,airspeedswift/swift,KrishMunot/swift,shajrawi/swift,harlanhaskins/swift,felix91gr/swift,jopamer/swift,nathawes/swift,rudkx/swift,felix91gr/swift,JGiola/swift,modocache/swift,sdulal/swift,shahmishal/swift,atrick/swift,lorentey/swift,calebd/swift,ken0nek/swift,return/swift,adrfer/swift,nathawes/swift,xedin/swift,Jnosh/swift,ahoppen/swift,khizkhiz/swift,gregomni/swift,cbrentharris/swift,arvedviehweger/swift,gregomni/swift,allevato/swift,natecook1000/swift,danielmartin/swift,emilstahl/swift,atrick/swift,roambotics/swift,kusl/swift,ken0nek/swift,khizkhiz/swift,tjw/swift,tinysun212/swift-windows,MukeshKumarS/Swift,MukeshKumarS/Swift,OscarSwanros/swift,MukeshKumarS/Swift,slavapestov/swift,SwiftAndroid/swift,xwu/swift,hooman/swift,kstaring/swift,benlangmuir/swift,ben-ng/swift,codestergit/swift,tkremenek/swift,modocache/swift,russbishop/swift,karwa/swift,apple/swift,xwu/swift,emilstahl/swift,gottesmm/swift,alblue/swift,gribozavr/swift,brentdax/swift,swiftix/swift.old,natecook1000/swift,adrfer/swift,uasys/swift,karwa/swift,johnno1962d/swift,amraboelela/swift,dreamsxin/swift,apple/swift,karwa/swift,tardieu/swift,gribozavr/swift,xwu/swift,JGiola/swift,huonw/swift,jopamer/swift,return/swift,nathawes/swift,uasys/swift,Jnosh/swift,felix91gr/swift,tardieu/swift,karwa/swift,sdulal/swift,KrishMunot/swift,djwbrown/swift,airspeedswift/swift,roambotics/swift,stephentyrone/swift,ben-ng/swift,hughbe/swift,nathawes/swift,JaSpa/swift,kstaring/swift,slavapestov/swift,austinzheng/swift,KrishMunot/swift,tjw/swift,aschwaighofer/swift,alblue/swift,stephentyrone/swift,CodaFi/swift,khizkhiz/swift,shahmishal/swift,swiftix/swift,sschiau/swift,codestergit/swift,swiftix/swift.old,alblue/swift,tinysun212/swift-windows,modocache/swift,uasys/swift,nathawes/swift,adrfer/swift,gribozavr/swift,austinzheng/swift,aschwaighofer/swift,return/swift,stephentyrone/swift,natecook1000/swift,Ivacker/swift,jtbandes/swift,felix91gr/swift,SwiftAndroid/swift,gregomni/swift,rudkx/swift,natecook1000/swift,brentdax/swift,jckarter/swift,manavgabhawala/swift,brentdax/swift,return/swift,hughbe/swift,parkera/swift,CodaFi/swift,jtbandes/swift,kentya6/swift,gmilos/swift,devincoughlin/swift,swiftix/swift.old,codestergit/swift,deyton/swift,Jnosh/swift,deyton/swift,practicalswift/swift,allevato/swift,natecook1000/swift,hooman/swift,JGiola/swift,manavgabhawala/swift,adrfer/swift,tkremenek/swift,tkremenek/swift,cbrentharris/swift,swiftix/swift,frootloops/swift,dduan/swift,djwbrown/swift,brentdax/swift,cbrentharris/swift,Jnosh/swift,milseman/swift,tinysun212/swift-windows,therealbnut/swift,mightydeveloper/swift,LeoShimonaka/swift,rudkx/swift,huonw/swift,russbishop/swift,swiftix/swift.old,swiftix/swift,cbrentharris/swift,austinzheng/swift,brentdax/swift,swiftix/swift.old,LeoShimonaka/swift,harlanhaskins/swift,emilstahl/swift,airspeedswift/swift,kentya6/swift,karwa/swift,ahoppen/swift,Jnosh/swift,xwu/swift,hughbe/swift,emilstahl/swift,swiftix/swift,austinzheng/swift,johnno1962d/swift,khizkhiz/swift,return/swift,kusl/swift,frootloops/swift,jopamer/swift,glessard/swift,therealbnut/swift,zisko/swift,manavgabhawala/swift,ahoppen/swift,cbrentharris/swift,kperryua/swift,kentya6/swift,deyton/swift,JaSpa/swift,hooman/swift,kperryua/swift,bitjammer/swift,alblue/swift,slavapestov/swift,kstaring/swift,IngmarStein/swift,shajrawi/swift,xedin/swift,OscarSwanros/swift,benlangmuir/swift,modocache/swift,swiftix/swift.old,tjw/swift,SwiftAndroid/swift,amraboelela/swift,cbrentharris/swift,apple/swift,djwbrown/swift,emilstahl/swift,sschiau/swift,jckarter/swift,zisko/swift,kentya6/swift,xedin/swift,danielmartin/swift,glessard/swift,ben-ng/swift,tinysun212/swift-windows,aschwaighofer/swift,modocache/swift,gmilos/swift,gmilos/swift,swiftix/swift,practicalswift/swift,uasys/swift,natecook1000/swift,practicalswift/swift,allevato/swift,parkera/swift,emilstahl/swift,parkera/swift,slavapestov/swift,gottesmm/swift,xedin/swift,alblue/swift,KrishMunot/swift,kentya6/swift,allevato/swift,JaSpa/swift,russbishop/swift,jopamer/swift,allevato/swift,KrishMunot/swift,atrick/swift,hooman/swift,slavapestov/swift,mightydeveloper/swift,devincoughlin/sw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