[stdlib] Eliminate optionals from specialization code
[stdlib] Eliminate optionals from specialization code

Apparently this makes the optimizer happier.  Still waiting on #9792 for truly
efficient specialization.

https://github.com/apple/swift/pull/9792

djwbrown/swift,nathawes/swift,amraboelela/swift,shahmishal/swift,hooman/swift,allevato/swift,deyton/swift,apple/swift,lorentey/swift,practicalswift/swift,jckarter/swift,jtbandes/swift,milseman/swift,devincoughlin/swift,huonw/swift,swiftix/swift,tkremenek/swift,frootloops/swift,frootloops/swift,gribozavr/swift,devincoughlin/swift,airspeedswift/swift,gribozavr/swift,allevato/swift,OscarSwanros/swift,djwbrown/swift,CodaFi/swift,tjw/swift,CodaFi/swift,practicalswift/swift,aschwaighofer/swift,natecook1000/swift,felix91gr/swift,rudkx/swift,lorentey/swift,felix91gr/swift,harlanhaskins/swift,benlangmuir/swift,shajrawi/swift,atrick/swift,xedin/swift,swiftix/swift,aschwaighofer/swift,allevato/swift,glessard/swift,jmgc/swift,jtbandes/swift,huonw/swift,tjw/swift,karwa/swift,return/swift,zisko/swift,practicalswift/swift,stephentyrone/swift,harlanhaskins/swift,natecook1000/swift,djwbrown/swift,xwu/swift,parkera/swift,rudkx/swift,zisko/swift,ahoppen/swift,natecook1000/swift,shahmishal/swift,roambotics/swift,shahmishal/swift,deyton/swift,frootloops/swift,jtbandes/swift,parkera/swift,frootloops/swift,austinzheng/swift,lorentey/swift,parkera/swift,sschiau/swift,Jnosh/swift,calebd/swift,benlangmuir/swift,alblue/swift,deyton/swift,sschiau/swift,gregomni/swift,OscarSwanros/swift,brentdax/swift,swiftix/swift,shahmishal/swift,devincoughlin/swift,airspeedswift/swift,tjw/swift,sschiau/swift,gribozavr/swift,jmgc/swift,karwa/swift,benlangmuir/swift,rudkx/swift,milseman/swift,xwu/swift,lorentey/swift,milseman/swift,return/swift,allevato/swift,milseman/swift,calebd/swift,huonw/swift,hughbe/swift,gregomni/swift,frootloops/swift,danielmartin/swift,brentdax/swift,stephentyrone/swift,return/swift,atrick/swift,uasys/swift,devincoughlin/swift,CodaFi/swift,JGiola/swift,austinzheng/swift,allevato/swift,zisko/swift,CodaFi/swift,uasys/swift,karwa/swift,JGiola/swift,practicalswift/swift,rudkx/swift,tkremenek/swift,aschwaighofer/swift,brentdax/swift,glessard/swift,xedin/swift,Jnosh/swift,djwbrown/swift,hooman/swift,OscarSwanros/swift,OscarSwanros/swift,swiftix/swift,Jnosh/swift,swiftix/swift,nathawes/swift,jmgc/swift,jopamer/swift,roambotics/swift,hughbe/swift,xedin/swift,karwa/swift,Jnosh/swift,practicalswift/swift,return/swift,uasys/swift,shajrawi/swift,jckarter/swift,felix91gr/swift,huonw/swift,uasys/swift,rudkx/swift,danielmartin/swift,stephentyrone/swift,stephentyrone/swift,jckarter/swift,alblue/swift,felix91gr/swift,jopamer/swift,jtbandes/swift,shajrawi/swift,apple/swift,ahoppen/swift,gribozavr/swift,austinzheng/swift,nathawes/swift,tjw/swift,jtbandes/swift,shajrawi/swift,milseman/swift,sschiau/swift,stephentyrone/swift,calebd/swift,stephentyrone/swift,parkera/swift,alblue/swift,austinzheng/swift,swiftix/swift,OscarSwanros/swift,ahoppen/swift,roambotics/swift,lorentey/swift,apple/swift,allevato/swift,parkera/swift,aschwaighofer/swift,benlangmuir/swift,harlanhaskins/swift,gribozavr/swift,glessard/swift,glessard/swift,shahmishal/swift,roambotics/swift,parkera/swift,aschwaighofer/swift,felix91gr/swift,atrick/swift,jopamer/swift,gribozavr/swift,amraboelela/swift,return/swift,Jnosh/swift,brentdax/swift,airspeedswift/swift,danielmartin/swift,xedin/swift,milseman/swift,jopamer/swift,stephentyrone/swift,OscarSwanros/swift,practicalswift/swift,hughbe/swift,sschiau/swift,tjw/swift,aschwaighofer/swift,glessard/swift,hooman/swift,roambotics/swift,devincoughlin/swift,shahmishal/swift,jtbandes/swift,parkera/swift,allevato/swift,amraboelela/swift,hughbe/swift,jckarter/swift,natecook1000/swift,return/swift,harlanhaskins/swift,frootloops/swift,danielmartin/swift,lorentey/swift,rudkx/swift,gribozavr/swift,swiftix/swift,alblue/swift,danielmartin/swift,xwu/swift,nathawes/swift,hooman/swift,xwu/swift,jopamer/swift,apple/swift,zisko/swift,danielmartin/swift,shahmishal/swift,Jnosh/swift,felix91gr/swift,hooman/swift,lorentey/swift,harlanhaskins/swift,calebd/swift,amraboelela/swift,deyton/swift,sschiau/swift,calebd/swift,gribozavr/swift,uasys/swift,zisko/swift,calebd/swift,practicalswift/swift,jmgc/swift,nathawes/swift,xedin/swift,brentdax/swift,shajrawi/swift,xwu/swift,hughbe/swift,jtbandes/swift,return/swift,shajrawi/swift,hughbe/swift,ahoppen/swift,tkremenek/swift,airspeedswift/swift,jckarter/swift,shajrawi/swift,airspeedswift/swift,lorentey/swift,ahoppen/swift,apple/swift,danielmartin/swift,JGiola/swift,ahoppen/swift,zisko/swift,austinzheng/swift,parkera/swift,karwa/swift,harlanhaskins/swift,frootloops/swift,devincoughlin/swift,tkremenek/swift,jmgc/swift,OscarSwanros/swift,felix91gr/swift,aschwaighofer/swift,atrick/swift,milseman/swift,hooman/swift,huonw/swift,zisko/swift,jckarter/swift,hughbe/swift,sschiau/swift,devincoughlin/swift,hooman/swift,amraboelela/swift,practicalswift/swift,JGiola/swift,calebd/swift,tjw/swift,natecook1000/swift,xedin/swift,xwu/swift,atrick/swift,tkremenek/swift,deyton/swift,tkremenek/swift,tjw/swift,karwa/swift,JGiola/swift,gregomni/swift,jopamer/swift,tkremenek/swift,karwa/swift,jmgc/swift,deyton/swift,CodaFi/swift,devincoughlin/swift,nathawes/swift,huonw/swift,jopamer/swift,Jnosh/swift,natecook1000/swift,austinzheng/swift,apple/swift,JGiola/swift,alblue/swift,airspeedswift/swift,huonw/swift,shahmishal/swift,djwbrown/swift,xedin/swift,sschiau/swift,jmgc/swift,airspeedswift/swift,CodaFi/swift,deyton/swift,benlangmuir/swift,djwbrown/swift,atrick/swift,natecook1000/swift,benlangmuir/swift,uasys/swift,brentdax/swift,uasys/swift,jckarter/swift,shajrawi/swift,alblue/swift,gregomni/swift,nathawes/swift,amraboelela/swift,karwa/swift,xedin/swift,gregomni/swift,austinzheng/swift,glessard/swift,CodaFi/swift,amraboelela/swift,alblue/swift,djwbrown/swift,xwu/swift,gregomni/swift,harlanhaskins/swift,roambotics/swift,brentdax/swift