[stdlib] Improved doc comments
[stdlib] Improved doc comments

Swift SVN r20557

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