[update-checkout] Add support for checking out compiler-rt in update-checkout.
[update-checkout] Add support for checking out compiler-rt in update-checkout.

This makes pull request testing of master-next work.

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