[stldib] Add missing comments for new reverse collections
[stldib] Add missing comments for new reverse collections

Also re-order some decls

Swift SVN r30596

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