Clean-up of the stdlib file forcing pre-specializations.
Clean-up of the stdlib file forcing pre-specializations.

- Remove public symbols.
- Only one top-level element called _Prespecialize.
- Simpler code.

Swift SVN r30333

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